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a:before{content:'';display:block;position:absolute;background-image:url(https://www.nist.gov/sites/all/themes/nist_style/images/sprite-images-s560f09f9b7.png);background-position:0 -55px;background-repeat:no-repeat;overflow:hidden;height:5px;width:7px;right:24px;top:14px;}@media (-webkit-min-device-pixel-ratio:2),(-o-min-device-pixel-ratio:3 / 2),(min--moz-device-pixel-ratio:2),(min-device-pixel-ratio:2),(min-resolution:144dppx) { html.js .collapsed .fieldset-legend a:before{background-size:54px 1460px;background-position:0 -17.5px;height:5px;width:7px;} }.fieldset-legend .summary{color:#999;font-size:0.9em;margin-left:0.5em;}fieldset{border:1px solid #333333;padding:0;margin:0px 0px 32px 0px;margin:0rem 0rem 2rem 0rem;}.fieldset-wrapper{padding:16px;padding:1rem;}.fieldset-wrapper:after{content:"";display:table;clear:both;}@media (max-width:679px) { .fieldset-wrapper{padding:16px;padding:1rem;} }.views-exposed-form .views-exposed-widget .form-submit{margin-top:0;margin-bottom:8px;margin-bottom:0.5rem;}html.js fieldset.collapsed{height:auto;}fieldset.collapsible:before{content:'';display:block;width:100%;height:60px;position:absolute;bottom:-48px;z-index:1;}fieldset.collapsible.collapsed:before{content:none;}.mobile-toggles:after{content:"";display:table;clear:both;}.mobile-toggles .mobile-toggle{float:right;text-align:center;display:block !important;margin-bottom:54px;}@media (min-width:560px) { .mobile-toggles .mobile-toggle{margin:0;} }.mobile-toggles .mobile-toggle a{color:white;font-style:normal;font-weight:700;font-size:18px;padding-left:11.2px;padding-left:0.7rem;padding-right:11.2px;padding-right:0.7rem;margin:10px 10px 10px 20px;text-transform:uppercase;height:38px;line-height:38px;display:block;transition:color 300ms ease;background:#595959;text-decoration:none;}.mobile-toggles .mobile-toggle a:hover,.mobile-toggles .mobile-toggle a:focus{color:black;background:white;text-decoration:none;outline:0;}@media 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a{padding-right:8px;padding-right:0.5rem;padding-left:8px;padding-left:0.5rem;padding-top:10px;padding-top:0.625rem;padding-bottom:10px;padding-bottom:0.625rem;margin-right:8px;margin-right:0.5rem;margin-bottom:10px;margin-bottom:0.625rem;display:inline-block;height:auto;width:auto;transition:background .2s;text-decoration:none;}.button--standard a{font-weight:normal;color:white;background:#595959;display:inline-block;padding:1.6px 14.4px 1.6px 14.4px;padding:0.1rem 0.9rem 0.1rem 0.9rem;text-decoration:none;}.button--standard 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#d9d9d9;background:#ffffff;color:black;font-size:12.8px;font-size:0.8rem;text-align:left;outline:0;outline-offset:-2px;cursor:default;}.sod_select:before{content:"\f0d7";position:absolute;right:9px;top:3px;color:#b3b3b3;display:inline-block;font:normal normal normal 20px/1 FontAwesome;text-rendering:auto;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;}.sod_select:hover,.sod_select.open,.sod_select.open{color:black;}.sod_select.focus{-moz-box-shadow:#0066ff 0 0 5px 0;-webkit-box-shadow:#0066ff 0 0 5px 0;box-shadow:#0066ff 0 0 5px 0;}.sod_select.disabled{border-color:#828282;color:#b2b2b2;cursor:not-allowed;}.sod_select .sod_label{display:block;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;padding-right:15px;}.sod_select .sod_prefix{}.sod_select .sod_placeholder{}.sod_select .sod_list_wrapper{position:absolute;top:100%;left:0;display:none;height:auto;margin:0 0 0 -1px;background:#ffffff;border:1px solid #b3b3b3;border-top:none;color:#444444;z-index:1000;}.sod_select.open .sod_list_wrapper{display:block;}.sod_select.disabled.open .sod_list_wrapper{display:none;}.sod_select.above .sod_list_wrapper{top:auto;bottom:100%;border-top:1px solid #b3b3b3;border-bottom:none;}.sod_select .sod_list{display:block;overflow-y:auto;padding:0;margin:0;}.sod_select .sod_option{display:block;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;position:relative;padding:6.4px;padding:0.4rem;list-style-type:none;}.sod_select .sod_option.optgroup,.sod_select .sod_option.optgroup.disabled{background:inherit;color:#939393;font-style:italic;}.sod_select .sod_option.groupchild{padding-left:20px;}.sod_select .sod_option.is-placeholder{display:none;}.sod_select .sod_option.disabled{background:inherit;color:#cccccc;}.sod_select .sod_option.active{background:#595959;color:white;}.sod_select .sod_option.selected{font-weight:bold;padding-right:25px;}.sod_select .sod_option.selected:before{content:"";position:absolute;right:10px;top:50%;-webkit-transform:translateY(-50%);-ms-transform:translateY(-50%);transform:translateY(-50%);display:inline-block;color:#808080;height:9px;width:10px;background:url(data:image/svg+xml;base64,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);}.sod_select.no_highlight .sod_option.selected:before{display:none;}.sod_select .sod_option.link{}.sod_select .sod_option.linkexternal{}.sod_select select{display:none !important;}.sod_select.touch select{-webkit-appearance:menulist-button;position:absolute;top:0;left:0;display:block !important;height:100%;width:100%;opacity:0;z-index:1;}#block-gtranslate-gtranslate{float:right;position:relative;margin-bottom:33.6px;margin-bottom:2.1rem;}#block-gtranslate-gtranslate:before{content:'Translate';font-size:14.4px;font-size:0.9rem;color:black;position:absolute;left:-60px;}.translate-select.sod_select{width:140px;}.translate-select.sod_select .sod_list_wrapper{width:140px;}.standard-select{}.standard-select.sod_select{width:100% !important;padding:6.4px;padding:0.4rem;}.standard-select.sod_select:before{color:gray;}.standard-select.sod_select .sod_list_wrapper{width:300px !important;z-index:100;}.standard-select .sod_option{min-height:27px;height:27px;}ul.contextual-links li:before{content:none;}.no-font .sidebar-callout i{display:none;}.sidebar-callout{margin-top:40px;margin-top:2.5rem;display:table;width:100%;min-height:68px;}.sidebar-callout a{display:block;font-size:22.4px;font-size:1.4rem;letter-spacing:0.8px;letter-spacing:0.05rem;color:white;text-transform:uppercase;padding:20.8px 0px;padding:1.3rem 0rem;text-align:center;background:url(https://www.nist.gov/sites/all/themes/nist_style/images/build/bg_pattern.png) repeat #1574b3;}@media (-webkit-min-device-pixel-ratio:2),(-moz-min-device-pixel-ratio:2) { .sidebar-callout a{background-image:url(https://www.nist.gov/sites/all/themes/nist_style/images/build/bg_pattern-2x.png) repeat #12659c;background-size:160px 80px;} }.sidebar-callout a i{color:white;display:inline-block;margin-right:8px;margin-right:0.5rem;}.sidebar-callout a:hover{color:white;text-decoration:none;background:url(https://www.nist.gov/sites/all/themes/nist_style/images/build/bg_pattern.png) repeat #2b8e34;}@media (-webkit-min-device-pixel-ratio:2),(-moz-min-device-pixel-ratio:2) { .sidebar-callout a:hover{background-image:url(https://www.nist.gov/sites/all/themes/nist_style/images/build/bg_pattern-2x.png) repeat #257a2d;background-size:160px 80px;} }.panel-region--content .sidebar-callout a{padding:20.8px;padding:1.3rem;font-size:40px;font-size:2.5rem;}@media (max-width:679px) { .panel-region--content .sidebar-callout a{padding:9.6px;padding:0.6rem;font-size:32px;font-size:2rem;} }.pane--events-calendar-callout,.pane--media-social-contacts-callout,.pane--news-events-callout{max-width:100%;margin-bottom:20px;margin-bottom:1.25rem;}.collapsible,.ctools-collapsible-container{margin-top:40px;margin-top:2.5rem;margin-bottom:20px;margin-bottom:1.25rem;}.collapsible > h2,.ctools-collapsible-container > h2{margin-bottom:0;padding-bottom:0;font-size:24px;font-size:1.5rem;line-height:40px;line-height:2.5rem;}.collapsible > h2 a,.ctools-collapsible-container > h2 a{display:block;background:whitesmoke;padding-right:9.6px;padding-right:0.6rem;padding-left:9.6px;padding-left:0.6rem;}.collapsible > h2 a:visited,.ctools-collapsible-container > h2 a:visited{color:#12659c;}.collapsible .ctools-collapsible-handle,.ctools-collapsible-container .ctools-collapsible-handle{color:#12659c;display:block;background:whitesmoke;padding-right:9.6px;padding-right:0.6rem;padding-left:9.6px;padding-left:0.6rem;}.collapsible .field-group-format-wrapper,.collapsible .ctools-collapsible-content,.ctools-collapsible-container .field-group-format-wrapper,.ctools-collapsible-container .ctools-collapsible-content{border-left:1px solid #e8e8e8;padding-right:16px;padding-right:1rem;padding-left:16px;padding-left:1rem;padding-top:20px;padding-top:1.25rem;padding-bottom:20px;padding-bottom:1.25rem;}.collapsible + .collapsible,.ctools-collapsible-container + .ctools-collapsible-container{margin-top:20px;margin-top:1.25rem;}.no-js .collapsible.collapsed .field-group-format-wrapper{display:block !important;}.no-js .collapsible.collapsed .field-group-format-toggler{display:block;background:whitesmoke;padding-right:9.6px;padding-right:0.6rem;padding-left:9.6px;padding-left:0.6rem;}.ctools-toggle{display:none;}.collapsible h2,.ctools-collapsible-container .ctools-collapsible-handle{position:relative;padding-right:30px;}.collapsible h2 a:after,.collapsible h2:after,.ctools-collapsible-container .ctools-collapsible-handle a:after,.ctools-collapsible-container .ctools-collapsible-handle:after{content:"\f068";font-family:FontAwesome;font-size:14px;position:absolute;top:50%;margin-top:-9px;right:10px;display:block;}.collapsible.collapsed h2 a:after,.ctools-collapsible-container.ctools-collapsed .ctools-collapsible-handle:after{content:"\f067";}.site-issue{background:whitesmoke;padding:9.6px;padding:0.6rem;}.site-issue .site-issue__title{font-size:20.8px;font-size:1.3rem;font-weight:700;margin-right:16px;margin-right:1rem;}.profile.contact{font-size:16px;font-size:1rem;line-height:20px;line-height:1.25rem;}.profile.contact.has-picture{min-height:120px;}.profile.contact.has-picture .user-picture{float:left;margin:0;}.profile.contact.has-picture .entity-profile2.view-mode-contact{margin-left:110px;}.field--profile-email{overflow-wrap:break-word;word-wrap:break-word;}.profile-info{background:whitesmoke;padding-right:16px;padding-right:1rem;padding-left:16px;padding-left:1rem;padding-top:20px;padding-top:1.25rem;padding-bottom:20px;padding-bottom:1.25rem;margin-bottom:40px;margin-bottom:2.5rem;}.social-share{height:30px;line-height:1px;margin-top:20px;margin-top:1.25rem;margin-bottom:20px;margin-bottom:1.25rem;}.social-share:after{content:"";display:table;clear:both;}.social-share a{display:inline-block;width:30px;line-height:30px;height:30px;overflow:hidden;margin-right:2px;text-indent:-9999px;transition:background-color 300ms ease;color:gray;position:relative;}.social-share a:before{font-size:22px;line-height:30px;width:30px;text-indent:0;text-align:center;display:inline-block;position:absolute;top:0;left:0;}.pane-social-share h2{position:absolute !important;height:1px;width:1px;overflow:hidden;clip:rect(1px,1px,1px,1px);}@media (min-width:1440px) { .pane-social-share{position:fixed !important;padding:10px;margin-top:40px;margin-top:2.5rem;height:auto;left:0;border:2px solid #e8e8e8;}.pane-social-share .contextual-links-wrapper{display:none !important;}.pane-social-share .social-share{height:auto;margin:0;}.pane-social-share h2{position:static !important;clip:auto;height:auto;width:auto;overflow:auto;color:#595959;text-transform:none;border:none;margin:0;font-size:16px;}.pane-social-share a{width:34px;height:34px;line-height:34px;margin:0;display:block;margin:0 auto;}.pane-social-share a:before{line-height:34px;width:34px;} }.social-share-facebook:hover,.social-share-facebook:focus{background:#3a5897;color:#fff;}.social-share-googleplus:hover,.social-share-googleplus:focus{background:#d2412f;color:#fff;}.social-share-twitter:hover,.social-share-twitter:focus{background:#49c9f2;color:#fff;}.social-btn{margin-right:2px;margin-left:0;padding:0;height:34px;color:gray;}.social-btn:hover,.social-btn:visited,.social-btn:active{color:gray;}.social-btn i:before{font-size:22px;line-height:34px;height:34px;width:34px;text-align:center;display:inline-block;}.social-btn i{transition:background-color 300ms ease;}.social-btn i:hover{color:#fff;background:gray;}.social-btn i.fa-twitter:hover{background:#49c9f2;}.social-btn i.fa-facebook:hover{background:#3a5897;}.social-btn i.fa-google-plus:hover{background:#d2412f;}.social-btn i.fa-linkedin:hover{background:#0077b5;}.social-btn i.fa-youtube:hover{background:#e52d27;}.social-btn i.fa-flickr:hover{background:#0063dc;}.social-btn .ext{display:none;}.social-btn--large{height:40px;}.social-btn--large i:before{font-size:26px;line-height:40px;height:40px;width:40px;}.social-links--block{padding-top:20px;padding-top:1.25rem;padding-bottom:20px;padding-bottom:1.25rem;margin-top:40px;margin-top:2.5rem;padding-right:8px;padding-right:0.5rem;padding-left:8px;padding-left:0.5rem;background:#12659c;text-align:center;}.social-links--block h2{display:inline-block;border:none;margin:0;color:white;margin-right:20px;font-size:18px;font-size:1.125rem;line-height:20px;line-height:1.25rem;}.social-links--block .social-links{display:inline-block;}.social-links--block ul{margin:0;}.social-links--block ul a{color:white;}.social-links--block ul a:visited{color:white;}.nist-teaser{margin-bottom:20px;margin-bottom:1.25rem;}.nist-teaser:after{content:"";display:table;clear:both;}.nist-teaser__title{font-family:"Source Sans Pro",Helvetica,Arial,sans-serif;font-weight:700;font-size:19.2px;font-size:1.2rem;line-height:1.3;padding:0;margin-top:0;margin-bottom:0;overflow:hidden;}.nist-teaser__title a{text-decoration:none;}.nist-teaser__content{overflow:hidden;font-size:14.4px;font-size:0.9rem;}@media (min-width:1200px) { .nist-teaser__content{font-size:16px;font-size:1rem;} }.nist-teaser__date{text-transform:uppercase;font-weight:bold;font-size:12.8px;font-size:0.8rem;color:gray;overflow:hidden;}.nist-teaser--with-image .nist-teaser__image{float:left;margin-right:20px;margin-bottom:0;line-height:0;width:100px;text-align:center;}.nist-featured{margin-bottom:20px;margin-bottom:1.25rem;}.nist-featured:after{content:"";display:table;clear:both;}.nist-featured__title{font-family:"Source Sans Pro",Helvetica,Arial,sans-serif;font-weight:700;font-size:24px;font-size:1.5rem;line-height:1.3;padding:0;margin-top:0;margin-bottom:0;overflow:hidden;}.nist-featured__title a{text-decoration:none;}.nist-featured__content{overflow:hidden;font-size:14.4px;font-size:0.9rem;}@media (min-width:1200px) { .nist-featured__content{font-size:16px;font-size:1rem;} }.nist-featured__date{text-transform:uppercase;font-weight:bold;font-size:12.8px;font-size:0.8rem;color:gray;overflow:hidden;}@media (min-width:680px) { .nist-featured__image,.nist-featured__video{float:left;margin-right:20px;margin-bottom:0;line-height:0;width:220px;text-align:center;max-width:33%;} }@media (min-width:680px) and (max-width:1199px) { .nist-featured--video .nist-featured__video{width:50%;max-width:50%;} }@media (min-width:1200px) { .nist-featured--video .nist-featured__video{width:700px;max-width:75%;} }.nist-featured--image{margin-bottom:40px;margin-bottom:2.5rem;}.nist-featured--image .nist-featured__image{float:none !important;width:100% !important;max-width:100% !important;}.nist-featured--image .nist-featured__title{margin-top:20px;margin-top:1.25rem;}.nist-media-grid__item{margin-bottom:20px;margin-bottom:1.25rem;text-align:center;}.nist-media-grid__title{text-align:left;font-size:14.4px;font-size:0.9rem;max-width:220px;margin:0 auto;}.nist-media-grid__title a{text-decoration:none;font-weight:700;}.nist-video .nist-media-grid__title{max-width:280px;}.nist-media-grid__view-all{clear:both;margin-top:20px;margin-top:1.25rem;margin-bottom:40px;margin-bottom:2.5rem;text-align:center;}.nist-chooser--media .nist-chooser__item{position:relative;}.nist-chooser--media .nist-chooser__item .flag-wrapper{position:absolute;top:4px;left:4px;}.nist-chooser--media .nist-chooser__item .flag-wrapper .flag-throbber{position:absolute;top:4px;left:28px;}.nist-chooser .flag-wrapper{padding:2px;display:inline-block;border:1px solid black;background:white;line-height:0;}.nist-chooser a.flag{display:inline-block;width:20px;height:20px;text-indent:-9999px;overflow:hidden;}.nist-chooser a.flag.unflag-action{background:#f5c636;}.nist-chooser__item{display:inline-block;margin:0 4px 4px 0;}.expandable a{display:block;position:relative;padding-right:34px;}.expandable ul{margin:0;padding:0;}.expandable ul li{list-style:none;padding:0;}.expandable ul li ul{display:none;}.expandable ul li.is-active-trail > ul,.expandable ul li.is-active-trail > * > ul{display:block;}.expander{position:absolute;top:0;right:0;bottom:0;width:30px;display:inline-block;padding:11.2px 0px 0px 0px;padding:0.7rem 0rem 0rem 0rem;z-index:1;background:transparent;}.expander:hover,.expander:active{background:#12659c;color:white;}.expander:before{font-size:14px;height:14px;width:30px;position:absolute;top:50%;left:0;margin-top:-7px;text-align:center;}.nist-grid:after{content:"";display:table;clear:both;}.nist-grid__item--1up,.nist-grid--1up .nist-grid__item,.nist-grid--1up .nist-media-grid__item{width:100%;margin:0;clear:both;float:none;}@media (min-width:680px) { .nist-grid__item--2up,.nist-grid--2up .nist-grid__item,.nist-grid--2up .nist-media-grid__item{-sgs-span-settings:("span":6,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:48.93617%;clear:right;float:left;margin-left:0;margin-right:2.12766%;}.nist-grid__item--2up:nth-child(even),.nist-grid--2up .nist-grid__item:nth-child(even),.nist-grid--2up .nist-media-grid__item:nth-child(even){margin-right:0;}.nist-grid__item--2up:nth-child(odd),.nist-grid--2up .nist-grid__item:nth-child(odd),.nist-grid--2up .nist-media-grid__item:nth-child(odd){clear:left;} }@media (min-width:680px) { .nist-grid__item--3up,.nist-grid--3up .nist-grid__item,.nist-grid--2up .nist-media-grid__item{-sgs-span-settings:("span":4,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter 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.nist-media-grid__item:nth-child(even){margin-right:0;}.nist-grid__item--4up:nth-child(odd),.nist-grid--4up .nist-grid__item:nth-child(odd),.nist-grid--4up .nist-media-grid__item:nth-child(odd){clear:left;} }@media (min-width:1200px) { .nist-grid__item--4up,.nist-grid--4up .nist-grid__item,.nist-grid--4up .nist-media-grid__item{-sgs-span-settings:("span":3,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:23.40426%;clear:right;float:left;margin-left:0;margin-right:2.12766%;}.nist-grid__item--4up:nth-child(4n),.nist-grid--4up .nist-grid__item:nth-child(4n),.nist-grid--4up .nist-media-grid__item:nth-child(4n){margin-right:0;}.nist-grid__item--4up:nth-child(4n + 1),.nist-grid--4up .nist-grid__item:nth-child(4n + 1),.nist-grid--4up .nist-media-grid__item:nth-child(4n + 1){clear:left;} }@media (max-width:679px) { .nist-grid__item--6up,.nist-grid--6up .nist-grid__item,.nist-grid--6up .nist-media-grid__item{-sgs-span-settings:("span":6,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:48.93617%;clear:right;float:left;margin-left:0;margin-right:2.12766%;}.nist-grid__item--6up:nth-child(even),.nist-grid--6up .nist-grid__item:nth-child(even),.nist-grid--6up .nist-media-grid__item:nth-child(even){margin-right:0;}.nist-grid__item--6up:nth-child(odd),.nist-grid--6up .nist-grid__item:nth-child(odd),.nist-grid--6up .nist-media-grid__item:nth-child(odd){clear:left;} }@media (min-width:680px) and (max-width:1199px) { .nist-grid__item--6up,.nist-grid--6up .nist-grid__item,.nist-grid--6up .nist-media-grid__item{-sgs-span-settings:("span":4,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter 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.nist-column--small-11{-sgs-span-settings:("span":11,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:91.48936%;clear:right;float:left;margin-left:0;margin-right:2.12766%;} }@media (min-width:680px) { .nist-column--medium-1{-sgs-span-settings:("span":1,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:6.38298%;clear:right;float:left;margin-left:0;margin-right:2.12766%;} }@media (min-width:680px) { .nist-column--medium-2{-sgs-span-settings:("span":2,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:14.89362%;clear:right;float:left;margin-left:0;margin-right:2.12766%;} }@media (min-width:680px) { .nist-column--medium-3{-sgs-span-settings:("span":3,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:23.40426%;clear:right;float:left;margin-left:0;margin-right:2.12766%;} }@media (min-width:680px) { .nist-column--medium-4{-sgs-span-settings:("span":4,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:31.91489%;clear:right;float:left;margin-left:0;margin-right:2.12766%;} }@media (min-width:680px) { .nist-column--medium-5{-sgs-span-settings:("span":5,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter 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.nist-column--large-3{-sgs-span-settings:("span":3,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:23.40426%;clear:right;float:left;margin-left:0;margin-right:2.12766%;} }@media (min-width:1200px) { .nist-column--large-4{-sgs-span-settings:("span":4,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:31.91489%;clear:right;float:left;margin-left:0;margin-right:2.12766%;} }@media (min-width:1200px) { .nist-column--large-5{-sgs-span-settings:("span":5,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:40.42553%;clear:right;float:left;margin-left:0;margin-right:2.12766%;} }@media (min-width:1200px) { .nist-column--large-6{-sgs-span-settings:("span":6,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:48.93617%;clear:right;float:left;margin-left:0;margin-right:2.12766%;} }@media (min-width:1200px) { .nist-column--large-7{-sgs-span-settings:("span":7,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:57.44681%;clear:right;float:left;margin-left:0;margin-right:2.12766%;} }@media (min-width:1200px) { .nist-column--large-8{-sgs-span-settings:("span":8,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:65.95745%;clear:right;float:left;margin-left:0;margin-right:2.12766%;} }@media (min-width:1200px) { .nist-column--large-9{-sgs-span-settings:("span":9,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:74.46809%;clear:right;float:left;margin-left:0;margin-right:2.12766%;} }@media (min-width:1200px) { .nist-column--large-10{-sgs-span-settings:("span":10,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:82.97872%;clear:right;float:left;margin-left:0;margin-right:2.12766%;} }@media (min-width:1200px) { .nist-column--large-11{-sgs-span-settings:("span":11,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:91.48936%;clear:right;float:left;margin-left:0;margin-right:2.12766%;} }.nist-column.last{margin-right:0;}.nist-callout-bar{position:relative;z-index:9999;background:#e4f2fc;padding:0px 16px;padding:0rem 1rem;padding-top:20px;padding-top:1.25rem;-moz-box-shadow:0 0 5px 0 #000;-webkit-box-shadow:0 0 5px 0 #000;box-shadow:0 0 5px 0 #000;}.nist-callout-bar__inner{max-width:1200px;margin:0 auto;}.nist-callout-bar__inner:after{content:"";display:table;clear:both;}.nist-callout-bar__content{float:left;margin-right:32px;margin-right:2rem;font-size:16px;font-size:1rem;line-height:20px;line-height:1.25rem;padding-top:5px;}.nist-callout-bar__buttons{float:left;}.nist-callout-bar__buttons .button{font-size:16px;font-size:1rem;padding-left:10px;padding-right:10px;margin-bottom:20px;margin-bottom:1.25rem;}.nist-callout-bar__buttons .button.bg-secondary{background:#257a2d;}.nist-callout-bar__buttons .button.bg-secondary:hover{background:#19531f;}.chosen-container{width:100% !important;}.chosen-container-active .chosen-choices{box-shadow:none;-moz-box-shadow:#0066ff 0 0 5px 0;-webkit-box-shadow:#0066ff 0 0 5px 0;box-shadow:#0066ff 0 0 5px 0;}.chosen-container-multi .chosen-choices{border:1px solid #d9d9d9;background-image:none;}.chosen-container-multi .chosen-choices li.search-field input[type="text"]{color:black;font-family:inherit;padding:6.4px;padding:0.4rem;}.chosen-container .chosen-results li.highlighted{background:#595959;color:white;}.chosen-container-active.chosen-with-drop .chosen-single,.chosen-container-single .chosen-single,.chosen-container .chosen-drop{border:1px solid #d9d9d9;background-image:none;border-radius:0;background:white;box-shadow:none;}.chosen-container-single .chosen-single{padding:6.4px;padding:0.4rem;height:inherit;line-height:inherit;}.chosen-container-single .chosen-single div b{display:none;}.chosen-container-single .chosen-single:before{content:"\f0d7";position:absolute;right:9px;top:3px;color:gray;display:inline-block;font:normal normal normal 20px/1 FontAwesome;text-rendering:auto;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;}.chosen-container .chosen-drop{width:300px !important;}.chosen-container-active .chosen-single,.chosen-container-active .chosen-choices{-moz-box-shadow:#0066ff 0 0 5px 0;-webkit-box-shadow:#0066ff 0 0 5px 0;box-shadow:#0066ff 0 0 5px 0;}.nist-expandable-help__button{color:#f5c636 !important;}.nist-expandable-help__text.form-item{margin-left:1em;margin-bottom:1em;padding:16px;padding:1rem;background:whitesmoke;font-size:14.4px;font-size:0.9rem;}.nist-disclaimer{border:1px solid #ff0604;padding:1em;font-size:12.8px;font-size:0.8rem;}.nist-hero{position:relative;margin-top:40px;margin-top:2.5rem;}.nist-hero:after{content:"";display:table;clear:both;}.nist-hero__item{position:relative;line-height:0;overflow:hidden;width:100%;}@media (min-width:680px) { .nist-hero__item{float:left;} }@media (max-width:1199px) { .nist-hero__item{height:auto !important;} }.nist-hero__image img{min-width:100%;width:100%;height:auto;}.nist-hero__image .file{width:auto !important;}.nist-hero__full-overlay-text{text-transform:uppercase;font-weight:700;font-size:16px;font-size:1rem;color:white;display:block;text-align:center;text-decoration:none;position:absolute;left:0;right:0;top:50%;transform:translate(0,-50%);line-height:1.5;text-shadow:0 0 4px #595959;}@media (min-width:500px) { .nist-hero__full-overlay-text{font-size:22.4px;font-size:1.4rem;} }.nist-hero__caption--overlay{position:absolute;bottom:0;width:100%;background:rgba(51,51,51,0.9);line-height:21px;padding:19.2px 19.2px;padding:1.2rem 1.2rem;color:white;font-size:17.6px;font-size:1.1rem;}.nist-hero__caption--overlay a{font-weight:normal;color:white;text-decoration:none;}.nist-hero__caption--overlay a:hover,.nist-hero__caption--overlay a:focus,.nist-hero__caption--overlay a:active{color:white;text-decoration:underline;}.nist-hero__full-overlay a{position:absolute;top:0;right:0;bottom:0;left:0;background:rgba(18,101,156,0.6);transition:background-color 0.2s ease;}.nist-hero__full-overlay a:hover,.nist-hero__full-overlay a:focus,.nist-hero__full-overlay a:active{background:rgba(18,101,156,0.4);}.nist-hero--homepage{margin-top:0;}@media (min-width:680px) { .nist-hero--homepage.nist-hero--2-items .nist-hero__item{width:50%;}.nist-hero--homepage.nist-hero--2-items .nist-hero__item--1{border-right:1px solid white;}.nist-hero--homepage.nist-hero--3-items .nist-hero__item--1{width:50%;border-right:1px solid white;}.nist-hero--homepage.nist-hero--3-items .nist-hero__item--2{width:25.05%;border-right:1px solid white;}.nist-hero--homepage.nist-hero--3-items .nist-hero__item--3{width:24.95%;}.nist-hero--homepage.nist-hero--4-items .nist-hero__item--1{width:50%;border-right:1px solid white;}.nist-hero--homepage.nist-hero--4-items .nist-hero__item--2,.nist-hero--homepage.nist-hero--4-items .nist-hero__item--3,.nist-hero--homepage.nist-hero--4-items .nist-hero__item--4{width:25%;border-right:1px solid white;}.nist-hero--homepage.nist-hero--4-items .nist-hero__item--2{border-bottom:1px solid white;margin-right:1px;border-right:1px solid white;}.nist-hero--homepage.nist-hero--4-items .nist-hero__item--4{position:absolute;top:0;right:0;}.nist-hero--homepage.nist-hero--5-items .nist-hero__item{width:25%;border-right:1px solid white;}.nist-hero--homepage.nist-hero--5-items .nist-hero__item--3{border-bottom:1px solid white;margin-right:1px;}.nist-hero--homepage.nist-hero--5-items .nist-hero__item--4{border-right:none;}.nist-hero--homepage.nist-hero--5-items .nist-hero__item--5{position:absolute;top:0;right:0;} }.nist-hero--landing .nist-hero__item{clear:both;float:none;margin-top:40px;margin-top:2.5rem;}@media (min-width:1200px) { .nist-hero--landing .nist-hero__item{clear:none;float:left;margin-top:0;} }.nist-hero--landing .nist-hero__image{float:left;clear:both;width:50%;margin-right:19.2px;margin-right:1.2rem;}@media (min-width:1200px) { .nist-hero--landing .nist-hero__image{float:none;clear:none;width:100%;margin-right:0;} }.nist-hero--landing .nist-hero__image--empty{width:100%;}.nist-hero--landing .nist-hero__image--empty a{display:block;width:100%;padding-bottom:35%;background:url(https://www.nist.gov/sites/all/themes/nist_style/images/build/bg_pattern.png) repeat #1574b3;}@media (-webkit-min-device-pixel-ratio:2),(-moz-min-device-pixel-ratio:2) { .nist-hero--landing .nist-hero__image--empty a{background-image:url(https://www.nist.gov/sites/all/themes/nist_style/images/build/bg_pattern-2x.png) repeat #12659c;background-size:160px 80px;} }@media (min-width:1200px) { .nist-hero--landing .nist-hero__image--empty a{padding-bottom:60%;} }.nist-hero--landing .nist-hero__caption a{font-size:17px;font-size:1.0625rem;line-height:20px;line-height:1.25rem;text-decoration:none;font-weight:700;}.nist-hero--landing .nist-hero__full-overlay a{left:50%;background:url(https://www.nist.gov/sites/all/themes/nist_style/images/build/bg_pattern.png) repeat #1574b3;}@media (-webkit-min-device-pixel-ratio:2),(-moz-min-device-pixel-ratio:2) { .nist-hero--landing .nist-hero__full-overlay a{background-image:url(https://www.nist.gov/sites/all/themes/nist_style/images/build/bg_pattern-2x.png) repeat #12659c;background-size:160px 80px;} }@media (min-width:1200px) { .nist-hero--landing .nist-hero__full-overlay a{left:0;background:rgba(18,101,156,0.6);} }.nist-hero--landing .nist-hero__image--empty + .nist-hero__full-overlay a{background:none;transition:background-color 0.2s ease;left:0;}.nist-hero--landing .nist-hero__image--empty + .nist-hero__full-overlay a:hover,.nist-hero--landing .nist-hero__image--empty + .nist-hero__full-overlay a:focus,.nist-hero--landing .nist-hero__image--empty + .nist-hero__full-overlay a:active{background:rgba(255,255,255,0.1);}.nist-hero--landing .nist-hero__full-overlay a{position:absolute;top:0;right:0;bottom:0;left:0;background:rgba(18,101,156,0.6);transition:background-color 0.2s ease;}.nist-hero--landing .nist-hero__full-overlay a:hover,.nist-hero--landing .nist-hero__full-overlay a:focus,.nist-hero--landing .nist-hero__full-overlay a:active{background:rgba(18,101,156,0.4);}@media (min-width:1200px) { .nist-hero--landing.nist-hero--2-items .nist-hero__item{-sgs-span-settings:("span":6,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:48.93617%;clear:right;float:left;margin-left:0;margin-right:2.12766%;}.nist-hero--landing.nist-hero--2-items .nist-hero__item--2{margin-right:0;}.nist-hero--landing.nist-hero--3-items .nist-hero__item{-sgs-span-settings:("span":4,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:31.91489%;clear:right;float:left;margin-left:0;margin-right:2.12766%;}.nist-hero--landing.nist-hero--3-items .nist-hero__item--3{margin-right:0;} }.nist-sidebar__info{background:whitesmoke;padding-right:16px;padding-right:1rem;padding-left:16px;padding-left:1rem;padding-bottom:20px;padding-bottom:1.25rem;}.nist-sidebar__info .pane--contact{padding:0;}.nist-sidebar__info > *:first-child{padding-top:20px;padding-top:1.25rem;}.front .panel-region--content{padding-bottom:40px;padding-bottom:2.5rem;overflow:hidden;}@media (max-width:679px) { .front .panel-region--content{padding-bottom:0;} }.front .panel-region--content .region-inner{background:white;padding-right:9.6px;padding-right:0.6rem;padding-left:9.6px;padding-left:0.6rem;padding-top:40px;padding-top:2.5rem;padding-bottom:40px;padding-bottom:2.5rem;}.front .panel-region--content .region-inner:after{content:"";display:table;clear:both;}@media (max-width:679px) { .front .panel-region--content .region-inner{padding-right:20.8px;padding-right:1.3rem;padding-left:20.8px;padding-left:1.3rem;} }.front .panel-region--content .pane{-sgs-span-settings:("span":6,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:48.93617%;clear:right;float:left;margin-left:0;margin-right:2.12766%;padding-right:32px;padding-right:2rem;padding-left:32px;padding-left:2rem;}.front .panel-region--content .pane .pane-inner{position:relative;}.front .panel-region--content .pane.last{-sgs-span-settings:("span":6,"location":7,"grid":12,"gutter":0.33333,"style":"opposite","start row":false,"end row":true,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:48.93617%;clear:right;float:right;margin-right:0;}@media (max-width:679px) { .front .panel-region--content .pane{padding:0px;padding:0rem;-sgs-span-settings:("span":12,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":true,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:100%;clear:right;float:right;margin-right:0;}.front .panel-region--content .pane.last{-sgs-span-settings:("span":12,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":true,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:100%;clear:right;float:right;margin-right:0;} }.front .panel-region--nist-features{background:#333333;}.front .panel-region--nist-features .region-inner{max-width:1440px;margin:0 auto;}.front .panel-region--call-outs{background-color:#e4f2fc;padding:1.6px 0px 32px 0px;padding:0.1rem 0rem 2rem 0rem;}@media (max-width:679px) { .front .panel-region--call-outs{padding:0;} }.front .panel-region--call-outs .region-inner:after{content:"";display:table;clear:both;}@media (max-width:679px) { .front .panel-region--call-outs .region-inner{padding:0;} }.front .panel-region--call-outs .pane{-sgs-span-settings:("span":4,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:31.91489%;clear:right;float:left;margin-left:0;margin-right:2.12766%;}.front .panel-region--call-outs .pane.last{margin-right:0;-sgs-span-settings:("span":4,"location":9,"grid":12,"gutter":0.33333,"style":"opposite","start row":false,"end row":true,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:31.91489%;clear:right;float:right;margin-right:0;}@media (max-width:679px) { .front .panel-region--call-outs .pane{padding:0px 32px;padding:0rem 2rem;-sgs-span-settings:("span":12,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":true,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:100%;clear:right;float:right;margin-right:0;}.front .panel-region--call-outs .pane.last{-sgs-span-settings:("span":12,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":true,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:100%;clear:right;float:right;margin-right:0;margin-bottom:32px;margin-bottom:2rem;} }.front .panel-region--featured-videos{padding:52.8px 0px 8px 0px;padding:3.3rem 0rem 0.5rem 0rem;}.front .panel-region--standard-reference{border-top:1px solid white;background:whitesmoke;}.front .panel-region--standard-reference .region-inner:after{content:"";display:table;clear:both;}.panel-region--postface{padding-top:20px;padding-top:1.25rem;margin-bottom:40px;margin-bottom:2.5rem;}.front .panel-region--featured-topics{background-color:whitesmoke;padding:32px 16px;padding:2rem 1rem;border-top:1px solid #e8e8e8;}.front .panel-region--featured-topics .inner{max-width:1200px;margin:0 auto;padding:0px 20.8px;padding:0rem 1.3rem;}.front .panel-region--featured-topics .inner:after{content:"";display:table;clear:both;}.front .panel-region--featured-topics h2{text-align:center;font-weight:400;font-style:normal;color:#257a2d;text-transform:uppercase;margin-top:0;margin-bottom:40px;margin-bottom:2.5rem;font-size:32px;line-height:40px;}.front .panel-region--mission{background-color:#e4f2fc;padding:64px 32px 1.6px 32px;padding:4rem 2rem 0.1rem 2rem;text-align:center;}.front .panel-region--mission h2{font-weight:300;font-style:normal;color:#333333;text-transform:uppercase;margin-top:0;font-size:48px;line-height:50px;}.front .panel-region--mission p{color:gray;}.panel-region--content .inner,.panel-region--left-sidebar .inner,.panel-region--right-sidebar-top .inner,.panel-region--right-sidebar .inner{margin-top:40px;margin-top:2.5rem;}.front .pane--connect-with-us.pane{background:#12659c;padding:11.2px 4.8px 4.8px 4.8px;padding:0.7rem 0.3rem 0.3rem 0.3rem;margin-bottom:40px;margin-bottom:2.5rem;}@media (max-width:679px) { .front .pane--connect-with-us.pane{padding:24px 0px 17.6px 0px;padding:1.5rem 0rem 1.1rem 0rem;float:none;} }.front .pane--connect-with-us.pane .pane{width:auto;padding:0;margin:0;float:none;}.pane--connect-with-us{text-align:center;}.pane--connect-with-us .pane__content{width:80%;margin:0 auto;text-align:center;}.pane--connect-with-us h2.pane__title{color:white;text-transform:uppercase;font-family:"Source Sans Pro",Helvetica,Arial,sans-serif;font-weight:500;font-style:normal;font-size:27.2px;font-size:1.7rem;display:inline-block;margin:0 1em;position:relative;padding:0;}@media (max-width:679px) { .pane--connect-with-us h2.pane__title{top:auto;display:block;margin-bottom:20px;margin-bottom:1.25rem;} }.pane--connect-with-us ul.connect-with-us__social-media-list{margin:0;padding:0;display:inline-block;}.pane--connect-with-us ul.connect-with-us__social-media-list:after{content:"";display:table;clear:both;}.pane--connect-with-us ul.connect-with-us__social-media-list li{list-style:none;float:left;text-align:center;line-height:26px;margin-right:9.6px;margin-right:0.6rem;font-size:16px;font-size:1rem;margin-bottom:0;padding:0;margin-left:0;}.pane--connect-with-us ul.connect-with-us__social-media-list li:before{content:none;}.pane--connect-with-us ul.connect-with-us__social-media-list li.last{margin-right:0;}.pane--connect-with-us ul.connect-with-us__social-media-list li a{-moz-border-radius:50%;-webkit-border-radius:50%;border-radius:50%;background:white;height:26px;width:26px;display:block;color:#595959;}.pane--connect-with-us ul.connect-with-us__social-media-list li a:hover{color:#12659c;}.pane--connect-with-us ul.connect-with-us__social-media-list li a i{text-align:center;vertical-align:middle;}.pane--callout .callout__header{position:relative;line-height:1;}.pane--callout h2.pane__title{color:white;font-weight:400;font-style:normal;position:absolute;text-transform:none;bottom:0;font-size:36px;background:black;background:-webkit-linear-gradient(top,transparent,black);background:-o-linear-gradient(bottom,transparent,black);background:-moz-linear-gradient(bottom,transparent,black);background:linear-gradient(to bottom,rgba(0,0,0,0),#000000);margin-bottom:0;display:block;width:100%;padding:32px 20.8px 4.8px 20.8px;padding:2rem 1.3rem 0.3rem 1.3rem;line-height:1.1;border-bottom:0;}@media (min-width:680px) and (max-width:1199px) { .pane--callout h2.pane__title{font-size:30px;} }.pane--callout .pane__inner-content{background:#12659c;padding:20.8px 20.8px 1.6px 20.8px;padding:1.3rem 1.3rem 0.1rem 1.3rem;}.pane--callout .pane__inner-content a{color:white;font-weight:400;line-height:20px;display:inline-block;text-decoration:none;}.pane--callout .pane__inner-content li{margin-bottom:10px;}.no-font .pane--half-width h2.pane__title .pane__title--emphasis{font-size:32px;font-size:2rem;}.pane--half-width{width:50%;float:left;background:whitesmoke;}.pane--half-width:after{content:"";display:table;clear:both;}.pane--half-width.full-width,.pane--half-width:only-child{width:100%;zoom:1;}.pane--half-width.full-width .pane__header-inner,.pane--half-width.full-width .pane__inner-content,.pane--half-width:only-child .pane__header-inner,.pane--half-width:only-child .pane__inner-content{max-width:1200px;padding-right:16px;padding-right:1rem;padding-left:16px;padding-left:1rem;margin:0 auto;float:none;border:0;}@media (max-width:679px) { .pane--half-width{width:100%;float:none;margin-bottom:0;} }.pane--half-width h2.pane__title{color:white;font-family:"Source Sans Pro",Helvetica,Arial,sans-serif;font-weight:700;font-style:normal;font-size:27.2px;font-size:1.7rem;position:relative;text-transform:uppercase;line-height:1;padding-top:32px;padding-top:2rem;padding-bottom:30.4px;padding-bottom:1.9rem;margin-top:0;margin-bottom:0;border-bottom:0;}.pane--half-width h2.pane__title .pane__title--emphasis{font-size:40px;font-size:2.5rem;display:block;font-weight:300;}.pane--half-width .pane__inner-content{padding-top:40px;padding-top:2.5rem;padding-bottom:54.4px;padding-bottom:3.4rem;position:relative;}@media (max-width:679px) { .pane--half-width .pane__inner-content{padding:24px 20.8px 40px 20.8px;padding:1.5rem 1.3rem 2.5rem 1.3rem;} }.pane--half-width .pane__body{margin-bottom:30.4px;margin-bottom:1.9rem;}@media (min-width:680px) { .pane--half-width .pane__body{padding-bottom:24px;padding-bottom:1.5rem;}.pane--half-width .pane__link{position:absolute;bottom:54px;} }@media (max-width:679px) { .pane--half-width--left{margin-bottom:0;} }.pane--half-width--left .pane__header{background:url(https://www.nist.gov/sites/all/themes/nist_style/images/build/bg_pattern.png) repeat #1574b3;overflow:hidden;position:relative;}@media (-webkit-min-device-pixel-ratio:2),(-moz-min-device-pixel-ratio:2) { .pane--half-width--left .pane__header{background-image:url(https://www.nist.gov/sites/all/themes/nist_style/images/build/bg_pattern-2x.png) repeat #12659c;background-size:160px 80px;} }.pane--half-width--left .pane__header:after{content:"";display:table;clear:both;}@media (min-width:680px) { .pane--half-width--left .pane__header:before{content:"";position:absolute;left:0;right:0;top:0;bottom:0;background-image:linear-gradient(to right,#12659c,rgba(0,0,0,0));} }.pane--half-width--left .pane_header *{position:relative;z-index:1;}.pane--half-width--left .pane__header-inner,.pane--half-width--left .pane__inner-content{max-width:600px;width:100%;float:right;padding-right:32px;padding-right:2rem;padding-left:32px;padding-left:2rem;}@media (max-width:679px) { .pane--half-width--left .pane__header-inner,.pane--half-width--left .pane__inner-content{max-width:none;float:none;} }.pane--half-width--right .pane__header{background:url(https://www.nist.gov/sites/all/themes/nist_style/images/build/bg_pattern.png) repeat #2b8e34;overflow:hidden;position:relative;}@media (-webkit-min-device-pixel-ratio:2),(-moz-min-device-pixel-ratio:2) { .pane--half-width--right .pane__header{background-image:url(https://www.nist.gov/sites/all/themes/nist_style/images/build/bg_pattern-2x.png) repeat #257a2d;background-size:160px 80px;} }.pane--half-width--right .pane__header:after{content:"";display:table;clear:both;}@media (min-width:680px) { .pane--half-width--right .pane__header:before{content:"";position:absolute;left:0;right:0;top:0;bottom:0;background-image:linear-gradient(to right,rgba(0,0,0,0),#257a2d);} }.pane--half-width--right .pane_header *{position:relative;z-index:1;}.pane--half-width--right .pane__header-inner,.pane--half-width--right .pane__inner-content{max-width:600px;width:100%;float:left;padding-right:32px;padding-right:2rem;padding-left:32px;padding-left:2rem;}@media (max-width:679px) { .pane--half-width--right .pane__header-inner,.pane--half-width--right .pane__inner-content{max-width:none;float:none;} }.pane--half-width--right .pane__inner-content{border-left:1px solid #d9d9d9;}.pane--standard-reference-materials{background-color:#e4f2fc;}.pane--standard-reference-materials h2.pane__title{padding-left:48px;padding-left:3rem;}.pane--standard-reference-materials h2.pane__title:before{display:block;content:' ';background-image:url(https://www.nist.gov/sites/all/themes/nist_style/images/sprite-images-s560f09f9b7.png);background-position:0 -200px;background-repeat:no-repeat;overflow:hidden;height:60px;width:36px;position:absolute;left:0;top:39px;}@media (-webkit-min-device-pixel-ratio:2),(-o-min-device-pixel-ratio:3 / 2),(min--moz-device-pixel-ratio:2),(min-device-pixel-ratio:2),(min-resolution:144dppx) { .pane--standard-reference-materials h2.pane__title:before{background-size:54px 1460px;background-position:0 -35px;height:60px;width:36px;} }.pane--standard-reference-data{background-color:#f0faf1;}.pane--standard-reference-data h2.pane__title{padding-left:70.4px;padding-left:4.4rem;}.pane--standard-reference-data h2.pane__title:before{display:block;content:' ';background-image:url(https://www.nist.gov/sites/all/themes/nist_style/images/sprite-images-s560f09f9b7.png);background-position:0 -2685px;background-repeat:no-repeat;overflow:hidden;height:57px;width:53px;position:absolute;left:0;top:39px;}@media (-webkit-min-device-pixel-ratio:2),(-o-min-device-pixel-ratio:3 / 2),(min--moz-device-pixel-ratio:2),(min-device-pixel-ratio:2),(min-resolution:144dppx) { .pane--standard-reference-data h2.pane__title:before{background-size:54px 1460px;background-position:0 -1280.5px;height:57px;width:53px;} }.pane--half-width h2.pane__title{padding-left:64px;padding-left:4rem;}.pane--half-width h2.pane__title:before{display:block;content:' ';position:absolute;left:0;top:22px;}.pane--half-width h2.pane__title.no-icon{padding-left:0;}.pane--half-width h2.pane__title.facilities:before{background-image:url(https://www.nist.gov/sites/all/themes/nist_style/images/sprite-images-s560f09f9b7.png);background-position:0 -380px;background-repeat:no-repeat;overflow:hidden;height:50px;width:54px;top:18px;}@media (-webkit-min-device-pixel-ratio:2),(-o-min-device-pixel-ratio:3 / 2),(min--moz-device-pixel-ratio:2),(min-device-pixel-ratio:2),(min-resolution:144dppx) { .pane--half-width h2.pane__title.facilities:before{background-size:54px 1460px;background-position:0 -135px;height:50px;width:54px;} }.pane--half-width h2.pane__title.products:before{background-image:url(https://www.nist.gov/sites/all/themes/nist_style/images/sprite-images-s560f09f9b7.png);background-position:0 -2058px;background-repeat:no-repeat;overflow:hidden;height:44px;width:47px;}@media (-webkit-min-device-pixel-ratio:2),(-o-min-device-pixel-ratio:3 / 2),(min--moz-device-pixel-ratio:2),(min-device-pixel-ratio:2),(min-resolution:144dppx) { .pane--half-width h2.pane__title.products:before{background-size:54px 1460px;background-position:0 -980px;height:44px;width:47px;} }.pane--half-width h2.pane__title.publications:before{background-image:url(https://www.nist.gov/sites/all/themes/nist_style/images/sprite-images-s560f09f9b7.png);background-position:0 -2224px;background-repeat:no-repeat;overflow:hidden;height:51px;width:43px;}@media (-webkit-min-device-pixel-ratio:2),(-o-min-device-pixel-ratio:3 / 2),(min--moz-device-pixel-ratio:2),(min-device-pixel-ratio:2),(min-resolution:144dppx) { .pane--half-width h2.pane__title.publications:before{background-size:54px 1460px;background-position:0 -1056px;height:51px;width:43px;} }.pane--half-width h2.pane__title.links:before{background-image:url(https://www.nist.gov/sites/all/themes/nist_style/images/sprite-images-s560f09f9b7.png);background-position:0 -1166px;background-repeat:no-repeat;overflow:hidden;height:47px;width:46px;}@media (-webkit-min-device-pixel-ratio:2),(-o-min-device-pixel-ratio:3 / 2),(min--moz-device-pixel-ratio:2),(min-device-pixel-ratio:2),(min-resolution:144dppx) { .pane--half-width h2.pane__title.links:before{background-size:54px 1460px;background-position:0 -531px;height:47px;width:46px;} }.pane--half-width h2.pane__title.presentations:before{background-image:url(https://www.nist.gov/sites/all/themes/nist_style/images/sprite-images-s560f09f9b7.png);background-position:0 -1895px;background-repeat:no-repeat;overflow:hidden;height:55px;width:44px;top:14px;}@media (-webkit-min-device-pixel-ratio:2),(-o-min-device-pixel-ratio:3 / 2),(min--moz-device-pixel-ratio:2),(min-device-pixel-ratio:2),(min-resolution:144dppx) { .pane--half-width h2.pane__title.presentations:before{background-size:54px 1460px;background-position:0 -887.5px;height:55px;width:44px;} }.pane--half-width h2.pane__title.staff:before{background-image:url(https://www.nist.gov/sites/all/themes/nist_style/images/sprite-images-s560f09f9b7.png);background-position:0 -802px;background-repeat:no-repeat;overflow:hidden;height:49px;width:38px;}@media (-webkit-min-device-pixel-ratio:2),(-o-min-device-pixel-ratio:3 / 2),(min--moz-device-pixel-ratio:2),(min-device-pixel-ratio:2),(min-resolution:144dppx) { .pane--half-width h2.pane__title.staff:before{background-size:54px 1460px;background-position:0 -347px;height:49px;width:38px;} }.pane--half-width h2.pane__title.updates:before{background-image:url(https://www.nist.gov/sites/all/themes/nist_style/images/sprite-images-s560f09f9b7.png);background-position:0 -1359px;background-repeat:no-repeat;overflow:hidden;height:44px;width:50px;}@media (-webkit-min-device-pixel-ratio:2),(-o-min-device-pixel-ratio:3 / 2),(min--moz-device-pixel-ratio:2),(min-device-pixel-ratio:2),(min-resolution:144dppx) { .pane--half-width h2.pane__title.updates:before{background-size:54px 1460px;background-position:0 -630.5px;height:44px;width:50px;} }.pane:after{content:"";display:table;clear:both;}.pane,.pane .pane-inner{position:relative;}.last-updated{margin-top:40px;margin-top:2.5rem;margin-bottom:40px;margin-bottom:2.5rem;font-size:14px;font-size:0.875rem;line-height:20px;line-height:1.25rem;font-style:italic;color:#595959;}.panel-region--postface{clear:both;}.pane--contact{margin-top:40px;margin-top:2.5rem;padding-top:20px;padding-top:1.25rem;padding-right:16px;padding-right:1rem;padding-left:16px;padding-left:1rem;padding-bottom:20px;padding-bottom:1.25rem;background:whitesmoke;color:#595959;}.pane--contact:after{content:"";display:table;clear:both;}.pane--contact label,.pane--contact .field-label{font-weight:normal;}.pane--contact ul{margin:0;padding:0;}.pane--contact h2.pane__title{border:none;padding:0;margin-top:0;font-size:24px;font-size:1.5rem;line-height:40px;line-height:2.5rem;margin-bottom:20px;margin-bottom:1.25rem;color:#595959;}.pane--contact h2.pane__title:before{display:inline-block;font:normal normal normal 14px/1 FontAwesome;font-size:inherit;text-rendering:auto;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;width:29px;content:"\f007";}.pane--contact a{font-weight:normal;}.pane--contact .field--contact,.pane--contact .field--technical-contact{margin-bottom:20px;margin-bottom:1.25rem;}.pane--contact .field--vendor-contact{margin-bottom:20px;margin-bottom:1.25rem;font-size:16px;font-size:1rem;line-height:20px;line-height:1.25rem;}.pane--contact h3.field-label{margin-bottom:20px;margin-bottom:1.25rem;border-bottom:1px solid #b3b3b3;margin-bottom:19px;text-transform:uppercase;font-size:16px;font-size:1rem;line-height:30px;line-height:1.875rem;font-weight:700;color:#595959;}@media (min-width:1200px) { .pane--contact h3.field-label{font-size:17px;font-size:1.0625rem;line-height:30px;line-height:1.875rem;} }.pane--contact .views-field-field-external-contact{font-size:16px;font-size:1rem;line-height:20px;line-height:1.25rem;}.pane--contact .view-content li{margin-bottom:20px;margin-bottom:1.25rem;list-style:none;padding:0;}.pane--contact .view-content .field--title,.pane--contact .view-content .field--name{font-weight:700;}.pane--contact .view-content .views-field-field-contact-description,.pane--contact .view-content .views-field-field-contact-description-2,.pane--contact .view-content .views-field-field-contact-description-3{margin-bottom:20px;margin-bottom:1.25rem;border-bottom:1px solid #b3b3b3;margin-bottom:19px;text-transform:uppercase;}.panel-region--postface .pane--contact .view-content:after{content:"";display:table;clear:both;}.panel-region--postface .pane--contact .view-content .views-field-field-contact-description,.panel-region--postface .pane--contact .view-content .views-field-field-contact-description-2,.panel-region--postface .pane--contact .view-content .views-field-field-contact-description-3{margin-bottom:20px;margin-bottom:1.25rem;}@media (min-width:680px) { .panel-region--postface .pane--contact .view-content li{-sgs-span-settings:("span":4,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:31.91489%;clear:right;float:left;margin-left:0;margin-right:2.12766%;}.panel-region--postface .pane--contact .view-content li.last{margin-right:0;} }.profile{margin:0;clear:none;}.pane--lab-ou-callout:after{content:"";display:table;clear:both;}@media (min-width:680px) { .pane--lab-ou-callout .views-field-field-callout .callout__body{-sgs-span-settings:("span":6,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:48.93617%;clear:right;float:left;margin-left:0;margin-right:2.12766%;} }@media (max-width:679px) { .pane--lab-ou-callout .views-field-field-callout .callout__body{margin-bottom:48px;margin-bottom:3rem;} }@media (min-width:680px) { .pane--lab-ou-callout .views-field-field-callout-2 .callout__body{-sgs-span-settings:("span":6,"location":7,"grid":12,"gutter":0.33333,"style":"opposite","start row":false,"end row":true,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:48.93617%;clear:right;float:right;margin-right:0;} }.pane--lab-ou-main-feature .views-row.has-image:after{content:"";display:table;clear:both;}@media (min-width:680px) { .pane--lab-ou-main-feature .views-row.has-image .views-field-field-main-feature-image{float:left;margin-right:32px;margin-right:2rem;} }.nist-topic .section-header{background:url(https://www.nist.gov/sites/all/themes/nist_style/images/build/bg_pattern.png) repeat #2b8e34;padding-top:40px;padding-top:2.5rem;padding-bottom:40px;padding-bottom:2.5rem;}@media (-webkit-min-device-pixel-ratio:2),(-moz-min-device-pixel-ratio:2) { .nist-topic .section-header{background-image:url(https://www.nist.gov/sites/all/themes/nist_style/images/build/bg_pattern-2x.png) repeat #257a2d;background-size:160px 80px;} }@media (min-width:680px) { .nist-topic .section-header:before{background-image:linear-gradient(to right,rgba(0,0,0,0),#257a2d);} }.nist-topic .section-header h1{max-width:1200px;margin:0 auto;padding-right:27.2px;padding-right:1.7rem;padding-left:27.2px;padding-left:1.7rem;position:relative;color:white;}.nist-topic .section-header h1:after{content:"";display:table;clear:both;}@media (min-width:1200px) { .nist-topic .section-header h1{padding-right:11.2px;padding-right:0.7rem;padding-left:11.2px;padding-left:0.7rem;} }.nist-featured-topics{margin-bottom:16px;margin-bottom:1rem;position:relative;text-align:center;}@media (min-width:680px) and (max-width:1199px) { .nist-featured-topics{-sgs-span-settings:("span":6,"location":1,"grid":12,"gutter":0.25,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:49.15254%;clear:right;float:left;margin-left:0;margin-right:1.69492%;}.nist-featured-topics:nth-child(even){margin-right:0;}.nist-featured-topics:nth-child(2n +3){clear:left;} }@media (min-width:1200px) { .nist-featured-topics{-sgs-span-settings:("span":3,"location":1,"grid":12,"gutter":0.25,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:23.72881%;clear:right;float:left;margin-left:0;margin-right:1.69492%;}.nist-featured-topics:nth-child(4n){margin-right:0;}.nist-featured-topics:nth-child(4n +5){clear:left;} }.nist-featured-topics a.nist-featured-topics__link{display:block;background:white;padding:16px 16px 16px 16px;padding:1rem 1rem 1rem 1rem;-webkit-transition:all 0.4s ease;-moz-transition:all 0.4s ease;-o-transition:all 0.4s ease;transition:all 0.4s ease;border:1px solid white;text-decoration:none;}.nist-featured-topics a.nist-featured-topics__link:hover{border:1px solid #257a2d;text-decoration:none;}.nist-featured-topics img{width:50px;}.nist-featured-topics .field--featured-topic-area{text-align:center;font-size:22px;line-height:26px;color:#257a2d;text-transform:uppercase;margin-top:0;font-weight:400;}.nist-featured-topics .field--description{text-align:left;color:#595959;margin-top:20px;margin-top:1.25rem;font-weight:400;margin-bottom:0;line-height:24px;}.pane--nist-blogs{background-color:#e4f2fc;padding-top:20px;padding-top:1.25rem;padding-bottom:40px;padding-bottom:2.5rem;}.pane--nist-blogs .inner{max-width:1200px;margin:0 auto;padding:0px 20.8px;padding:0rem 1.3rem;}.pane--nist-blogs .inner:after{content:"";display:table;clear:both;}.pane--nist-blogs h2{color:#12659c;font-weight:500;text-transform:uppercase;margin-bottom:20px;margin-bottom:1.25rem;}.nist-blog{font-size:16px;font-size:1rem;line-height:20px;line-height:1.25rem;margin-bottom:40px;margin-bottom:2.5rem;}@media (min-width:680px) { .nist-blog{-sgs-span-settings:("span":6,"location":1,"grid":12,"gutter":2,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:47.05882%;clear:right;float:left;margin-left:0;margin-right:5.88235%;}.nist-blog.even{margin-right:0;} }.nist-blog p{margin-bottom:20px;margin-bottom:1.25rem;}.nist-blog .nist-blog-item a{font-weight:500;display:block;margin-bottom:10px;margin-bottom:0.625rem;text-decoration:none;}.nist-blog h3{font-size:20px;font-size:1.25rem;line-height:30px;line-height:1.875rem;}.pane--landing-page-callout:after{content:"";display:table;clear:both;}@media (min-width:680px) { .pane--landing-page-callout .views-field-field-callout .callout__body{-sgs-span-settings:("span":6,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:48.93617%;clear:right;float:left;margin-left:0;margin-right:2.12766%;} }@media (max-width:679px) { .pane--landing-page-callout .views-field-field-callout .callout__body{margin-bottom:48px;margin-bottom:3rem;} }@media (min-width:680px) { .pane--landing-page-callout .views-field-field-callout-2 .callout__body{-sgs-span-settings:("span":6,"location":7,"grid":12,"gutter":0.33333,"style":"opposite","start row":false,"end row":true,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:48.93617%;clear:right;float:right;margin-right:0;} }.pane--landing-page-main-feature .views-row.has-image:after{content:"";display:table;clear:both;}@media (min-width:680px) { .pane--landing-page-main-feature .views-row.has-image .views-field-field-main-feature-image{float:left;margin-right:32px;margin-right:2rem;} }.view--focus-areas .view--display-id-attachment_1 .view-content .views-row,.view--focus-areas-icons .view--display-id-attachment_1 .view-content .views-row{width:25%;border-bottom:1px solid #d9d9d9;border-right:1px solid #d9d9d9;float:left;height:220px;background:url(https://www.nist.gov/sites/all/themes/nist_style/images/build/bg_pattern.png) repeat white;}@media (-webkit-min-device-pixel-ratio:2),(-moz-min-device-pixel-ratio:2) { .view--focus-areas .view--display-id-attachment_1 .view-content .views-row,.view--focus-areas-icons .view--display-id-attachment_1 .view-content .views-row{background-image:url(https://www.nist.gov/sites/all/themes/nist_style/images/build/bg_pattern-2x.png) repeat white;background-size:160px 80px;} }@media (max-width:679px) { .view--focus-areas .view--display-id-attachment_1 .view-content .views-row,.view--focus-areas-icons .view--display-id-attachment_1 .view-content .views-row{width:100%;border-right:none;float:none;height:90px;} }.view--focus-areas .view--display-id-attachment_1 .view-content h2,.view--focus-areas-icons .view--display-id-attachment_1 .view-content h2{height:220px;line-height:220px;color:#12659c;text-align:center;margin:0;padding:0;text-transform:uppercase;font-size:32px;font-size:2rem;border-bottom:0;font-weight:400;}@media (max-width:679px) { .view--focus-areas .view--display-id-attachment_1 .view-content h2,.view--focus-areas-icons .view--display-id-attachment_1 .view-content h2{line-height:90px;} }.view--focus-areas .view-content .views-row,.view--focus-areas-icons .view-content .views-row{width:25%;border-bottom:1px solid #d9d9d9;border-right:1px solid #d9d9d9;float:left;height:220px;}@media (max-width:679px) { .view--focus-areas .view-content .views-row,.view--focus-areas-icons .view-content .views-row{width:100%;float:none;border-right:none;} }.view--focus-areas .view-content .views-row-3,.view--focus-areas .view-content .views-row-7,.view--focus-areas-icons .view-content .views-row-3,.view--focus-areas-icons .view-content .views-row-7{border-right:0;}.view--focus-areas .view-content .views-row-4,.view--focus-areas .view-content .views-row-5,.view--focus-areas .view-content .views-row-6,.view--focus-areas .view-content .views-row-7,.view--focus-areas-icons .view-content .views-row-4,.view--focus-areas-icons .view-content .views-row-5,.view--focus-areas-icons .view-content .views-row-6,.view--focus-areas-icons .view-content .views-row-7{border-bottom:none;}@media (max-width:679px) { .view--focus-areas .view-content .views-row-4,.view--focus-areas .view-content .views-row-5,.view--focus-areas .view-content .views-row-6,.view--focus-areas-icons .view-content .views-row-4,.view--focus-areas-icons .view-content .views-row-5,.view--focus-areas-icons .view-content .views-row-6{border-bottom:1px solid #d9d9d9;} }.focus-area__link{display:block;height:100%;padding:8px;padding:0.5rem;background:white;}@media 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.views-row{-sgs-span-settings:("span":3,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:23.40426%;clear:right;float:left;margin-left:0;margin-right:2.12766%;}.grid-view .view-content .views-row:nth-of-type(4n){-sgs-span-settings:("span":3,"location":10,"grid":12,"gutter":0.33333,"style":"opposite","start row":false,"end row":true,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:23.40426%;clear:right;float:right;margin-right:0;}.grid-view .view-content .views-row:nth-of-type(4n + 5){clear:both;} }.grid-view .video-thumbnail-container,.grid-view .field--image{position:relative;max-width:220px;margin-bottom:9.6px;margin-bottom:0.6rem;}.grid-view .video-thumbnail-container .video-thumbnail-indicator,.grid-view .field--image 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2),(min--moz-device-pixel-ratio:2),(min-device-pixel-ratio:2),(min-resolution:144dppx) { .view--events-calendar .date-nav-wrapper li.date-next span{background-size:54px 1460px;background-position:0 -220px;height:10px;width:6px;} }.view--events-calendar .date-nav-wrapper li.date-next a{color:#12659c;font-size:18px;font-size:1.125rem;line-height:20px;line-height:1.25rem;font-weight:normal;}.view--events-calendar .date-nav-wrapper li.date-next a:hover{text-decoration:underline;}@media (max-width:679px) { .view--events-calendar .view-content{display:none;}.view--events-calendar .attachment{display:block;}.view--events-calendar .attachment .view-content{display:block;}.view--events-calendar ul.calendar__toggle{display:none;}.view--events-calendar ul.pager{display:block;position:static;}.view--events-calendar .calendar__title{text-align:left;}.view--events-calendar .date-nav-wrapper .date-prev a{margin-left:0;} }.view--events-calendar .date-nav{min-height:0 !important;margin:0 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a{font-weight:normal;font-size:16px;font-size:1rem;line-height:20px;line-height:1.25rem;display:block;padding:4px;background-color:#e4f2fc;}.calendar-calendar .monthview .continues,.calendar-calendar .monthview .cutoff{display:none;}.calendar-calendar .month-view .full td.multi-day .inner .monthview .continuation{background:none;height:auto;margin-top:4.8px;margin-top:0.3rem;font-size:14px;font-size:0.875rem;line-height:20px;line-height:1.25rem;display:none;}.calendar-calendar .month-view .views-field-title a{font-weight:500;font-size:16px;font-size:1rem;line-height:20px;line-height:1.25rem;display:block;padding:4px;background-color:#e4f2fc;}.calendar-calendar .month-view .views-field-body{display:none;}.calendar-calendar .month-view .full td.multi-day .calendar.monthview .contents,.calendar-calendar .week-view .full td.multi-day .calendar.weekview .contents{position:static;width:auto;left:auto;}@media (min-width:680px) { body.show-calendar .view--events-calendar .view-content{display:block;}body.show-calendar .view--events-calendar .attachment{display:none;}body.hide-calendar .view--events-calendar .view-content{display:none;}body.hide-calendar .view--events-calendar .attachment{display:block;} }@media (max-width:860px) { .view--events-calendar ul.calendar__toggle,.view--events-calendar ul.pager{position:static;float:left;}.view--events-calendar ul.pager{float:right;clear:none;} }html.js .views-exposed-form .collapsible .fieldset-legend a{color:gray;font-weight:normal;padding:0;background:none;padding-right:9.6px;padding-right:0.6rem;}html.js .views-exposed-form .collapsible .fieldset-legend a:before{content:'';display:block;position:absolute;background-image:url(https://www.nist.gov/sites/all/themes/nist_style/images/sprite-images-s560f09f9b7.png);background-position:0 -20px;background-repeat:no-repeat;overflow:hidden;height:5px;width:7px;right:3px;top:7px;cursor:pointer;}@media (-webkit-min-device-pixel-ratio:2),(-o-min-device-pixel-ratio:3 / 2),(min--moz-device-pixel-ratio:2),(min-device-pixel-ratio:2),(min-resolution:144dppx) { html.js .views-exposed-form .collapsible .fieldset-legend a:before{background-size:54px 1460px;background-position:0 0;height:5px;width:7px;} }html.js .views-exposed-form .collapsed .fieldset-legend{position:relative;font-size:16px;font-size:1rem;}html.js .views-exposed-form .collapsed .fieldset-legend a{font-weight:normal;background:none;padding:0;padding-right:9.6px;padding-right:0.6rem;}html.js .views-exposed-form .collapsed .fieldset-legend a:before{content:'';display:block;position:absolute;background-image:url(https://www.nist.gov/sites/all/themes/nist_style/images/sprite-images-s560f09f9b7.png);background-position:0 -55px;background-repeat:no-repeat;overflow:hidden;height:5px;width:7px;right:3px;top:7px;cursor:pointer;}@media (-webkit-min-device-pixel-ratio:2),(-o-min-device-pixel-ratio:3 / 2),(min--moz-device-pixel-ratio:2),(min-device-pixel-ratio:2),(min-resolution:144dppx) { html.js .views-exposed-form .collapsed .fieldset-legend a:before{background-size:54px 1460px;background-position:0 -17.5px;height:5px;width:7px;} }.views-exposed-widgets{margin:0;}.views-exposed-form{position:relative;background:whitesmoke;padding:16px;padding:1rem;margin-bottom:20px;margin-bottom:1.25rem;}.views-exposed-form fieldset{border:0;margin:0;min-width:100px;}.views-exposed-form .fieldset-wrapper{padding:0;}.views-exposed-form .views-exposed-widget{padding:0;width:300px;max-width:100%;margin-bottom:20px;margin-bottom:1.25rem;}.views-exposed-form .views-exposed-widget.views-submit-button,.views-exposed-form .views-exposed-widget.views-reset-button{margin-bottom:0;width:auto;margin:0 3px 3px 0;}.views-exposed-form .views-exposed-widget.views-submit-button input,.views-exposed-form .views-exposed-widget.views-reset-button input{padding-right:0.5em;padding-left:0.5em;}@media (max-width:679px) { .views-exposed-form .views-exposed-widget{float:none;width:100%;margin:0;} }.views-exposed-form .date-padding .form-item{margin:0 !important;min-height:1px !important;}.views-exposed-form legend{padding:8px 0px;padding:0.5rem 0rem;}.panel-region--left-sidebar .views-exposed-form legend{position:static;width:100%;text-align:right;padding-right:20.8px;padding-right:1.3rem;margin-bottom:9.6px;margin-bottom:0.6rem;}@media (max-width:679px) { .views-exposed-form legend{position:static;width:100%;}.views-exposed-form legend .fieldset-legend{display:inline-block;padding-left:20.8px;padding-left:1.3rem;padding-bottom:9.6px;padding-bottom:0.6rem;} }.views-exposed-form .views-exposed-widget-actions{position:relative;z-index:1;clear:both;}.views-exposed-form .views-exposed-widget-actions:after{content:"";display:table;clear:both;}.views-exposed-form .description{font-style:italic;margin-top:4.8px;margin-top:0.3rem;font-size:12.8px;font-size:0.8rem;line-height:1.2;color:#595959;}.views-exposed-form .views-widget-filter-secondary{display:block;float:none;clear:both;}.views-exposed-form .views-widget-filter-secondary.views-exposed-widget{background:transparent;}.views-exposed-form .views-widget-filter-secondary .form-item{margin:0px 0px 20.8px 0px;margin:0rem 0rem 1.3rem 0rem;min-height:86px;max-width:100%;}.views-exposed-form .views-widget-filter-secondary .form-item.form-item-field-date-value-min-date,.views-exposed-form .views-widget-filter-secondary .form-item.form-item-field-date-value-max-date{margin:0;min-height:1px;}.views-exposed-form .views-widget-filter-secondary .form-item.form-type-date-popup{position:relative;}.views-exposed-form .views-widget-filter-secondary .form-item.form-type-date-popup input{padding-left:30px !important;}.views-exposed-form .views-widget-filter-secondary .form-item.form-type-date-popup:before{content:"\f073";position:absolute;left:9px;top:35px;color:gray;display:inline-block;font:normal normal normal 14px/1 FontAwesome;font-size:inherit;text-rendering:auto;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;}.views-exposed-form .views-widget-filter-secondary .container-inline-date{clear:none;}.views-exposed-form .views-widget-filter-secondary .container-inline-date .form-item input{margin-right:0;}.panel-region--left-sidebar .views-exposed-form .primary-filter{width:100%;height:auto;}.panel-region--left-sidebar .views-exposed-form .primary-filter input{width:210px;}.panel-region--left-sidebar .views-exposed-form .form-item{min-height:1px;float:none;}.panel-region--left-sidebar .views-exposed-form .views-exposed-widget-actions{width:100%;}.panel-region--left-sidebar .views-exposed-form .fieldset-wrapper{max-width:100%;}@media (max-width:325px) { .views-reset-button{margin-left:1.6px;margin-left:0.1rem;} }.exposed-search-filter{margin-top:40px;margin-top:2.5rem;}.exposed-search-filter .views-widget-filter-combine{float:left;margin-bottom:8px;margin-bottom:0.5rem;}.exposed-search-filter .views-exposed-widget-actions{clear:none;overflow:hidden;}@media (min-width:680px) { .panel-region--content .views-exposed-widget,.panel-region--preface .views-exposed-widget{margin-right:32px;margin-right:2rem;} }.view--publication-topic-area-taxonomy:after{content:"";display:table;clear:both;}.view--publication-topic-area-taxonomy .column{width:31.91489% !Important;clear:right !important;float:left !important;margin-left:0 !important;margin-right:2.12766% !important;}.view--publication-topic-area-taxonomy .column.last{float:right !important;margin-right:0 !important;}@media (max-width:679px) { .view--publication-topic-area-taxonomy .column,.view--publication-topic-area-taxonomy .column.last{float:none !important;display:block !important;width:100% !important;} }.view--our-people.view--display-id-panel_pane_2 .view-header .item-list li,.view--our-people .view-footer .item-list li{display:inline;padding:0px 35.2px 0px 0px;padding:0rem 2.2rem 0rem 0rem;list-style-type:none;background-image:none;margin-bottom:24px;margin-bottom:1.5rem;margin-left:0;}.view--our-people.view--display-id-panel_pane_2 .view-header .item-list li:before,.view--our-people .view-footer .item-list li:before{content:none;}.pane-views-exp-our-people-panel-pane-2 .views-exposed-form .views-exposed-widget-actions{position:static;}.pane-views-exp-our-people-panel-pane-2 .views-widget-per-page,.pane-views-exp-our-people-panel-pane-2 .views-widget-sort-by,.pane-views-exp-our-people-panel-pane-2 .views-widget-sort-order{padding:20px 32px 0px 32px;padding:1.25rem 2rem 0rem 2rem;clear:both;}.pane-views-exp-our-people-panel-pane-2 .views-widget-per-page{padding:20px 32px;padding:1.25rem 2rem;}.pane-views-exp-our-people-panel-pane-2 .primary-filter{height:auto;}.pane-views-exp-our-people-panel-pane-2 .views-submit-button{clear:both;}.pinned .views-field-view-user,table.responsive td,table.responsive th{height:59.2px;height:3.7rem;}.section-header{background:url(https://www.nist.gov/sites/all/themes/nist_style/images/build/bg_pattern.png) repeat #1574b3;position:relative;}@media (-webkit-min-device-pixel-ratio:2),(-moz-min-device-pixel-ratio:2) { .section-header{background-image:url(https://www.nist.gov/sites/all/themes/nist_style/images/build/bg_pattern-2x.png) repeat #12659c;background-size:160px 80px;} }@media (min-width:680px) { .section-header:before{content:"";position:absolute;left:0;right:0;top:0;bottom:0;background-image:linear-gradient(to right,rgba(0,0,0,0),#12659c);} }.section-header *{position:relative;z-index:1;}.section-header__top{max-width:1200px;margin:0 auto;padding:20px 10px;color:white;}.section-header__top a{color:white;}.section-header__top a:nth-child(2n){color:#b6ddf7;}.section-header__main{max-width:1200px;margin:0 auto;padding-right:27.2px;padding-right:1.7rem;padding-left:27.2px;padding-left:1.7rem;position:relative;color:white;}.section-header__main:after{content:"";display:table;clear:both;}.section-header__main *,.section-header__main a,.section-header__main a:visited{color:white;}@media (min-width:1200px) { .section-header__main{padding-right:11.2px;padding-right:0.7rem;padding-left:11.2px;padding-left:0.7rem;} }.has-menu .section-header .section-header__main:before{content:"";display:block;width:0;height:0;box-sizing:content-box;border-top:18px solid #12659c;border-right:15px solid transparent;border-left:15px solid transparent;position:absolute;bottom:-15px;left:30px;}.has-menu .section-header .section-header__subsection .section-header__main:before{border-top:18px solid #e4f2fc;}.section-header__subsection{background-color:#e4f2fc;}.section-header__subsection *,.section-header__subsection a,.section-header__subsection a:visited{color:black;}h1.section-header__title{text-align:center;text-transform:uppercase;margin-top:0;margin-bottom:0;padding-top:40px;padding-top:2.5rem;padding-bottom:40px;padding-bottom:2.5rem;font-size:28px;font-size:1.75rem;line-height:40px;line-height:2.5rem;}@media (min-width:680px) { h1.section-header__title{text-align:left;-sgs-span-settings:("span":4,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:31.91489%;float:left;margin-right:-100%;margin-left:0;clear:none;} }h2.section-header__title{text-transform:uppercase;margin-top:0;margin-bottom:0;padding-top:20px;padding-top:1.25rem;padding-bottom:20px;padding-bottom:1.25rem;}h2.section-header__title span.fa{font-size:0.8em;}h2.section-header__title a{text-decoration:none;color:white;}h2.section-header__title a:hover,h2.section-header__title a:hover span{color:#b6ddf7;}.section-header__subsection h2.section-header__title a{color:black;}.section-header__subsection h2.section-header__title a:hover,.section-header__subsection h2.section-header__title a:hover span{color:#12659c;}.section-header__body{margin-top:30px;margin-top:1.875rem;margin-bottom:30px;margin-bottom:1.875rem;padding-top:10px;padding-top:0.625rem;padding-bottom:10px;padding-bottom:0.625rem;padding-right:32px;padding-right:2rem;padding-left:32px;padding-left:2rem;font-style:italic;text-align:center;position:relative;border-left:3px solid white;border-right:3px solid white;}.section-header__body p{margin-bottom:10px;margin-bottom:0.625rem;}.section-header__body:before{content:'';display:block;box-sizing:border-box;width:5px;height:100%;border-top:3px solid white;border-bottom:3px solid white;position:absolute;top:0;left:0;}.section-header__body:after{content:'';display:block;box-sizing:border-box;width:5px;height:100%;border-top:3px solid white;border-bottom:3px solid white;position:absolute;top:0;right:0;}@media (min-width:680px) { .section-header__body{-sgs-span-settings:("span":8,"location":5,"grid":12,"gutter":0.33333,"style":"opposite","start row":false,"end row":true,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:65.95745%;float:right;margin-left:0;margin-right:0;clear:none;} }.section-header__body a{font-weight:bold;font-style:normal;text-decoration:none;}.section-header__subsection .section-header__body{border-color:black;}.section-header__subsection .section-header__body:before,.section-header__subsection .section-header__body:after{border-color:black;}.has-menu .section-header--book .section-header__main:before{display:none;}.section-header--topic{background:url(https://www.nist.gov/sites/all/themes/nist_style/images/build/bg_pattern.png) repeat #2b8e34;}@media (-webkit-min-device-pixel-ratio:2),(-moz-min-device-pixel-ratio:2) { .section-header--topic{background-image:url(https://www.nist.gov/sites/all/themes/nist_style/images/build/bg_pattern-2x.png) repeat #257a2d;background-size:160px 80px;} }.section-header--topic:before{background-image:linear-gradient(to right,rgba(0,0,0,0),#257a2d);}.section-header--topic .section-header__top a:nth-child(2n){color:#b5e9ba;}.has-menu .section-header--topic .section-header__main:before{border-top:18px solid #257a2d;}.has-menu .section-header--topic .section-header__subsection .section-header__main:before{border-top:18px solid #dcf5df;}.section-header--topic .section-header__subsection{background-color:#dcf5df;}.section-header--topic h2.section-header__title a:hover,.section-header--topic h2.section-header__title a:hover span{color:#b5e9ba;}.section-header--topic .section-header__subsection h2.section-header__title a:hover,.section-header--topic .section-header__subsection h2.section-header__title a:hover span{color:#257a2d;}.nist-related-orgs{padding-top:20px;padding-top:1.25rem;padding-bottom:20px;padding-bottom:1.25rem;margin-top:40px;margin-top:2.5rem;padding-right:16px;padding-right:1rem;padding-left:16px;padding-left:1rem;background:#e4f2fc;}.nist-related-orgs h2{text-transform:uppercase;font-weight:500;color:#12659c;font-size:24px;font-size:1.5rem;line-height:40px;line-height:2.5rem;margin-top:0;margin-bottom:0;padding-bottom:20px;padding-bottom:1.25rem;}.nist-related-orgs h2 i{margin-right:0.5em;}.nist-related-orgs ul{margin-bottom:0;padding-left:0;}.nist-related-orgs ul li{list-style:none;font-size:16px;font-size:1rem;line-height:16px;line-height:1rem;}.nist-related-orgs ul li a{display:block;padding-bottom:10px;padding-bottom:0.625rem;text-decoration:none;}.nist-related-orgs ul li a:visited{color:#12659c;}.nist-related-orgs .term-tree-list > ul > li > a,.nist-related-orgs .term-tree-list > ul > li > ul > li > a{display:none;}.nist-related-orgs .term-tree-list ul{margin-left:0;}.nist-related-orgs .term-tree-list ul ul ul ul{margin-left:16px;margin-left:1rem;}.view--staff-by-org.view-display-id-panel_pane_1 .view-grouping-header{font-family:"Source Sans Pro",Helvetica,Arial,sans-serif;font-weight:700;font-style:normal;color:black;margin-bottom:10px;margin-bottom:0.625rem;padding-bottom:0;}.view--staff-by-org.view-display-id-panel_pane_1 .view-grouping-header a{font-size:30px;font-size:1.875rem;line-height:40px;line-height:2.5rem;font-weight:400;display:block;font-style:normal;color:inherit;text-transform:uppercase;text-decoration:none;padding-top:0;font-size:24px;line-height:24px;padding-bottom:4px;margin-bottom:10px;border-bottom:2px solid #12659c;margin-top:40px;margin-top:2.5rem;clear:both;}.view--staff-by-org.view-display-id-panel_pane_1 .view-grouping-header a:hover{text-decoration:none;color:#12659c;}.view--staff-by-org.view-display-id-panel_pane_1 caption{text-align:left;margin-bottom:20px;margin-bottom:1.25rem;}.view--staff-by-org.view-display-id-panel_pane_1 caption a{font-size:20px;font-size:1.25rem;line-height:20px;line-height:1.25rem;}.view--staff-by-org.view-display-id-panel_pane_2 caption{text-align:left;margin-bottom:20px;margin-bottom:1.25rem;}.view--staff-by-org.view-display-id-panel_pane_2 caption a{font-size:30px;font-size:1.875rem;line-height:40px;line-height:2.5rem;}.view--staff-by-org .view-grouping{margin-bottom:80px;margin-bottom:5rem;}.staff-by-org-directory a{display:inline-block;}.staff-by-org-directory .item-list{margin-left:32px;margin-left:2rem;}.staff-by-org-directory ul li a{margin-bottom:20px;margin-bottom:1.25rem;}.staff-by-org-directory ul ul li a{margin-bottom:20px;margin-bottom:1.25rem;}.staff-by-org-directory ul ul ul li a{margin-bottom:0;}.view--landing-page-hero{margin-top:40px;margin-top:2.5rem;}.view--landing-page-hero img{width:100%;}.view--landing-page-hero .file{width:auto !important;}.view--landing-page-hero .view-content:after{content:"";display:table;clear:both;}@media (max-width:679px) { .view--landing-page-hero.view--display-id-three_hero_block .views-row{clear:both;}.view--landing-page-hero.view--display-id-three_hero_block .views-row .views-field-field-hero-image{float:left;clear:both;max-width:50%;margin-right:19.2px;margin-right:1.2rem;} }.view--landing-page-hero.view--display-id-three_hero_block .views-row a{font-size:17px;font-size:1.0625rem;line-height:20px;line-height:1.25rem;text-decoration:none;font-weight:700;}@media (min-width:680px) { .view--landing-page-hero.view--display-id-three_hero_block.count-2 .views-row{-sgs-span-settings:("span":6,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:48.93617%;clear:right;float:left;margin-left:0;margin-right:2.12766%;}.view--landing-page-hero.view--display-id-three_hero_block.count-2 .views-row.views-row-last{margin-right:0;} }@media (min-width:680px) { .view--landing-page-hero.view--display-id-three_hero_block.count-3 .views-row{-sgs-span-settings:("span":4,"location":1,"grid":12,"gutter":0.33333,"style":"opposite","start row":true,"end row":false,"fixed gutter":false,"split gutter":false,"gutter property":"margin","options":((null:null)));width:31.91489%;clear:right;float:left;margin-left:0;margin-right:2.12766%;}.view--landing-page-hero.view--display-id-three_hero_block.count-3 .views-row.views-row-last{margin-right:0;} }.view--landing-page-hero.view--display-id-three_hero_block .views-field-field-additional-hero-content{overflow:hidden;}.view--landing-page-hero.view--display-id-large_hero{position:relative;margin-bottom:20px;margin-bottom:1.25rem;}.view--landing-page-hero.view--display-id-large_hero .views-field-field-hero-image .content{line-height:0;}.view--landing-page-hero.view--display-id-large_hero .views-field-field-additional-hero-content{position:absolute;bottom:0;left:0;width:100%;background:#000;background:rgba(0,0,0,0.8);padding:11.2px 19.2px;padding:0.7rem 1.2rem;color:white;}.view--landing-page-hero.view--display-id-large_hero .views-field-field-additional-hero-content a{color:white;}.view--landing-page-hero.view--display-id-large_hero .views-field-field-additional-hero-content a:after{content:'';display:inline-block;margin-left:4.8px;margin-left:0.3rem;border:4px solid transparent;border-left:4px solid #f5c636;}.nist-topic-menu{padding-top:20px;padding-top:1.25rem;padding-bottom:20px;padding-bottom:1.25rem;margin-top:40px;margin-top:2.5rem;padding-right:16px;padding-right:1rem;padding-left:16px;padding-left:1rem;background:whitesmoke;}.nist-topic-menu h3{text-transform:uppercase;font-weight:500;color:#12659c;font-size:24px;font-size:1.5rem;line-height:40px;line-height:2.5rem;margin-top:0;margin-bottom:0;padding-bottom:20px;padding-bottom:1.25rem;}.nist-topic-menu h3 i{margin-right:0.5em;}.nist-topic-menu ul{margin-bottom:0;padding-left:0;}.nist-topic-menu ul li{list-style:none;font-size:16px;font-size:1rem;line-height:16px;line-height:1rem;}.nist-topic-menu ul li a{display:block;padding-bottom:10px;padding-bottom:0.625rem;text-decoration:none;font-weight:700;}.nist-topic-menu ul li a:visited{color:#12659c;}.nist-org-list{margin-top:10px;margin-top:0.625rem;padding-top:10px;padding-top:0.625rem;border-top:1px solid #e8e8e8;}.nist-org-list h3{margin-top:0;margin-bottom:0;}.nist-org-list h3 a{display:block;position:relative;color:black;padding:0px 11.2px;padding:0rem 0.7rem;padding-top:10px;padding-top:0.625rem;padding-bottom:10px;padding-bottom:0.625rem;font-size:20px;font-size:1.25rem;line-height:20px;line-height:1.25rem;padding-right:34px;font-weight:700;text-decoration:none;}.nist-org-list h3 a:hover{background:#e4f2fc;text-decoration:none;}.nist-org-list h3 a:active{background:#f5c636;}.nist-org-list h3 i{margin-right:0.5em;}.nist-org-list ul{margin-bottom:0;margin-left:0;padding-left:0;display:none;}.nist-org-list ul li{list-style:none;font-size:16px;font-size:1rem;line-height:16px;line-height:1rem;}.nist-org-list ul li a{display:block;padding-bottom:10px;padding-bottom:0.625rem;text-decoration:none;font-weight:700;}.nist-org-list ul li a:visited{color:#12659c;}.nist-org-list ul li a:visited:hover{color:#0d476e;}@media (min-width:680px) { .nist-org-list{padding-top:20px;padding-top:1.25rem;padding-bottom:20px;padding-bottom:1.25rem;margin-top:40px;margin-top:2.5rem;padding-right:16px;padding-right:1rem;padding-left:16px;padding-left:1rem;background:whitesmoke;border:none;}.nist-org-list h3{text-transform:uppercase;margin-top:0;margin-bottom:0;padding-bottom:20px;padding-bottom:1.25rem;}.nist-org-list h3 a{display:inline;position:relative;color:#12659c;padding:0;font-size:24px;font-size:1.5rem;line-height:40px;line-height:2.5rem;font-weight:500;text-decoration:none;}.nist-org-list h3 a:hover{background:none;color:#0d476e;text-decoration:none;}.nist-org-list h3 a:active{background:none;}.nist-org-list ul{display:block;} }#block-search-form{position:absolute;z-index:100;right:132px;margin-bottom:0;}#block-search-form input[type=submit]{display:none;}#block-search-form form{position:relative;}#block-search-form form .form-item{display:block;margin:0;}#block-search-form button{position:absolute;background:none;color:black;right:20px;top:-1px;padding:0;margin:0;line-height:40px;height:40px;font-size:19.2px;font-size:1.2rem;}#block-search-form button:hover{color:#f5c636;}#block-search-form input[type=text]{margin:10px;padding-right:36px;color:white;background:none;border:none;font-size:17.6px;font-size:1.1rem;line-height:38px;height:38px;width:280px;text-align:left;background:#333333;}#block-search-form input[type=text]:focus{box-shadow:none;outline-offset:0;}@media (min-width:560px) { #block-search-form input[type=text]{text-align:right;margin-left:100px;width:280px;} }#block-search-form button[type=submit]{line-height:58px;height:58px;color:white;}.mini-header #block-search-form{width:100%;background:#333333;top:54px;left:0;right:auto;}@media (min-width:560px) { .mini-header #block-search-form{float:right;clear:none;width:auto;background:none;top:0;left:auto;right:140px;} }.full-header #block-search-form{width:100%;background:#333333;top:164px;left:0;right:auto;}@media (min-width:560px) { .full-header #block-search-form{float:right;clear:none;width:auto;background:none;top:106px;left:auto;right:140px;} }@media (min-width:680px) { .full-header #block-search-form{position:relative;right:auto;bottom:auto;top:0;}.full-header #block-search-form input[type=text]{width:280px;font-size:16px;font-size:1rem;height:40px;line-height:40px;border:1px solid #d9d9d9;color:black;text-align:left;margin:0;background:none;}.full-header #block-search-form input[type=text].placeholder_text{color:black;}.full-header #block-search-form input[type=text]:focus{box-shadow:#f5c636 0 0 5px 0;}.full-header #block-search-form button[type=submit]{color:black;height:40px;line-height:40px;} }.block--social-sharing-print{font-size:19px;font-size:1.2rem;line-height:20px;line-height:1.25rem;margin-bottom:20px;margin-bottom:1.25rem;}.block--social-sharing-print a{color:#12659c;}.block--social-sharing-print a:visited{color:#12659c;}.block--social-sharing-print a i{color:#595959;margin-right:8px;margin-right:0.5rem;}.social-media-print__print-button{display:inline-block;position:relative;top:4px;}.social-media-print__seperator{display:inline-block;color:#b3b3b3;border-right:1px solid #b3b3b3;margin:0px 8px;margin:0rem 0.5rem;font-size:0;}.social-media-print__sharing-container{display:inline-block;position:relative;top:4px;}.social-media-print__sharing-container .addthis_sharing_toolbox{display:none;position:absolute;right:-85px;top:-2px;}.social-media-print__sharing-container #atstbx{line-height:0;}.social-media-print__sharing-container .at-share-tbx-element.addthis_32x32_style .at-share-btn{height:auto;width:auto;max-height:none;max-width:none;margin:0;line-height:30.4px;line-height:1.9rem;}.social-media-print__sharing-container .at-share-tbx-element.addthis_32x32_style .at-share-btn.at-svc-facebook{background:none;border-right:1px solid #b3b3b3;}.social-media-print__sharing-container .at-share-tbx-element.addthis_32x32_style .at-share-btn.at-svc-facebook .at4-icon.aticon-facebook{display:inline-block;font:normal normal normal 14px/1 FontAwesome;font-size:inherit;text-rendering:auto;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:none;text-indent:0;height:auto;width:auto;max-height:none;max-width:none;margin:0px 11.2px 0px 11.2px;margin:0rem 0.7rem 0rem 0.7rem;vertical-align:middle;color:#3a5897;}.social-media-print__sharing-container .at-share-tbx-element.addthis_32x32_style .at-share-btn.at-svc-facebook .at4-icon.aticon-facebook:before{content:"\f09a";font-size:24px;font-size:1.5rem;line-height:30.4px;line-height:1.9rem;position:relative;top:1px;}.social-media-print__sharing-container .at-share-tbx-element.addthis_32x32_style .at-share-btn.at-svc-twitter{background:none;border-right:1px solid #b3b3b3;}.social-media-print__sharing-container .at-share-tbx-element.addthis_32x32_style .at-share-btn.at-svc-twitter .at4-icon.aticon-twitter{display:inline-block;font:normal normal normal 14px/1 FontAwesome;font-size:inherit;text-rendering:auto;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:none;text-indent:0;height:auto;width:auto;max-height:none;max-width:none;margin:0px 8px 0px 11.2px;margin:0rem 0.5rem 0rem 0.7rem;vertical-align:middle;color:#49c9f2;}.social-media-print__sharing-container .at-share-tbx-element.addthis_32x32_style .at-share-btn.at-svc-twitter .at4-icon.aticon-twitter:before{content:"\f099";font-size:24px;font-size:1.5rem;line-height:30.4px;line-height:1.9rem;}.social-media-print__sharing-container .at-share-tbx-element.addthis_32x32_style .at-share-btn.at-svc-google_plusone_share{background:none;}.social-media-print__sharing-container .at-share-tbx-element.addthis_32x32_style .at-share-btn.at-svc-google_plusone_share .at4-icon.aticon-google_plusone_share{display:inline-block;font:normal normal normal 14px/1 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