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.menu-item.menu-topics:hover,#mobile-header-nav nav .menu-item.menu-topics.selected{border-bottom:solid #5c8012 15px}@media all and (min-width:769px)and (max-width:1100px){#mobile-header-nav nav .menu-item.menu-topics:hover,#mobile-header-nav nav .menu-item.menu-topics.selected{border-bottom:solid #5c8012 8px}}@media screen and (max-width:768px){#mobile-header-nav nav .menu-item.menu-topics:hover,#mobile-header-nav nav .menu-item.menu-topics.selected{border-bottom:0}}#mobile-header-nav nav .menu-item.menu-games:hover,#mobile-header-nav nav .menu-item.menu-games.selected{border-bottom:solid #cb2e71 15px}@media all and (min-width:769px)and (max-width:1100px){#mobile-header-nav nav .menu-item.menu-games:hover,#mobile-header-nav nav .menu-item.menu-games.selected{border-bottom:solid #cb2e71 8px}}@media screen and (max-width:768px){#mobile-header-nav nav .menu-item.menu-games:hover,#mobile-header-nav nav .menu-item.menu-games.selected{border-bottom:0}}#mobile-header-nav nav 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.subpages{overflow:hidden;text-indent:20px;width:17.5rem;max-height:0;padding-top:0;padding-bottom:0;margin-top:0;margin-bottom:0;transition-duration:.5s;-moz-transition-timing-function:cubic-bezier(0,1,0.5,1)}#mobile-header-nav nav ul li .subpages.expand{transition-duration:.5s;transition-timing-function:ease-in;max-height:1000px;overflow:hidden}#mobile-header-nav nav ul li .subpages li{height:48px;line-height:48px;border-bottom:solid rgba(255,255,255,.25) 1px}#mobile-header-nav nav ul li .subpages li a{color:#fff;display:block}#mobile-header-nav nav ul li .subpages li:last-child{border-bottom:none}#mobile-header-nav nav ul li .subtopics{background-color:#5c8012}#mobile-header-nav nav ul li .subtopics li:hover{background-color:#74a217}#mobile-header-nav nav ul li .subgames{background-color:#cb2e71}#mobile-header-nav nav ul li .subgames li:hover{background-color:#d64985}#mobile-header-nav nav ul li .subactivities{width:234px;position:relative;background-color:#01727a}@media screen and (max-width:768px){#mobile-header-nav nav ul li .subactivities{width:17.5rem;position:static}}#mobile-header-nav nav ul li .subactivities li:hover{background-color:#0195a0}#mobile-header-nav nav ul li .sublessons{background-color:#7f1e57}#mobile-header-nav nav ul li .sublessons li:hover{background-color:#972b6a}#mobile-header-nav nav ul li ul li{color:#fff;font-family:"arvo-regular";font-size:18px;height:48px;display:block;overflow:hidden}header:not(.usa-banner-header){background-color:#fff;width:100%;position:fixed;z-index:150;background:linear-gradient(to bottom,rgba(0,0,0,0.8) 0%,rgba(0,0,0,0) 100%);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr="#cc000000",endColorstr="#007db9e8",GradientType=0);height:135px;box-shadow:none;margin-top:1.8em}@media screen and (max-width:768px){header:not(.usa-banner-header){background-color:#fff;height:auto;position:absolute;top:-1.67rem}}header:not(.usa-banner-header).white{background:none;background-color:#fff;box-shadow:0 5px 5px 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#logo-niehs{margin-top:35px}}header:not(.usa-banner-header) .logo-kids{font-family:"alabama";margin-top:20px;font-size:25px;float:left;width:100%;margin-left:35px}header:not(.usa-banner-header) .logo-kids:hover{text-decoration:underline;color:gray}@media screen and (min-width:1370px){header:not(.usa-banner-header) .logo-kids{font-size:29px}}@media screen and (min-width:768px)and (max-width:1100px){header:not(.usa-banner-header) .logo-kids{margin-top:25px;font-size:17px}}@media screen and (max-width:768px){header:not(.usa-banner-header) .logo-kids{margin-left:15px;font-size:20px}}header:not(.usa-banner-header) .logo-kids .kids-logo-color-one{color:#5c8012}header:not(.usa-banner-header) .logo-kids .kids-logo-color-one.white{color:#fff}header:not(.usa-banner-header) .logo-kids .kids-logo-color-two{color:#a0a0a0}header:not(.usa-banner-header) .logo-kids .kids-logo-color-two.grey{color:#737373}@media screen and (max-width:768px){header:not(.usa-banner-header) .kids-nav-wrapper{background-color:#fff;width:100%;height:54px;position:absolute;top:110px;z-index:-1;border-bottom:2px solid #d3d3d4}}input[type=search]::-webkit-search-decoration,input[type=search]::-webkit-search-cancel-button,input[type=search]::-webkit-search-results-button,input[type=search]::-webkit-search-results-decoration{display:none}#search-button{width:40px;height:37px;padding-right:10px;border:none;background:#939393 url(/sites/niehs-kids/themes/custom/niehs_kids/web-resources/images/vector-search.svg) no-repeat center center;margin-top:-10px;cursor:pointer;float:left;position:absolute;right:0;top:0}header nav .menu-activities{margin-right:3%}#header-search{position:absolute;top:74px;right:1%}@media screen and (min-width:768px)and (max-width:1369px){#header-search{top:20px;height:37px;right:1%}}@media screen and (max-width:768px){#header-search{top:20px}}#search{padding-left:10px;padding-right:10px;padding-top:15px;padding-bottom:15px;-webkit-appearance:none;font-family:"arvo-regular";border:none;background-color:rgba(255,255,255,.9);color:#000;float:left;font-size:16px;margin-top:-10px;width:213px;margin-left:-45px;height:37px;padding-bottom:0;padding-top:0}#search::-moz-placeholder{color:#646464}#search::placeholder{color:#646464}header.nav-container.white.fixed-nav #search{background-color:rgba(200,200,200,.2);color:#222}@media screen and (max-width:768px){#search{position:static;margin-left:0px;position:absolute;right:0;width:250px;box-shadow:0px 0px 1px 1px rgba(0,0,0,.15);background-color:rgba(255,255,255,.9)}}#search.none{border:none;background-color:rgba(0,0,0,0);color:rgba(0,0,0,0)}#header-menu-icon{height:80px;width:80px;background:url(/sites/niehs-kids/themes/custom/niehs_kids/web-resources/images/vector-hamburger.svg) no-repeat center 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3.5px;font-size:22px;font-family:"arvo-bold";padding-top:12px;padding-bottom:12px;padding-left:25px}#header-mobile-menu ul li ul{display:none;width:100%}#header-mobile-menu ul li ul li{border-bottom:#e6e6e7 solid 0px;font-size:16px;font-family:"arvo-regular";padding-top:10px;padding-bottom:10px;margin-left:20px}#header-mobile-menu ul li ul li a{color:#666;text-decoration:none}#header-mobile-menu ul li ul li a:hover{text-decoration:underline}#header-mobile-menu ul li ul li:first-child{padding-top:23px}#header-mobile-menu ul li ul li:last-child{padding-bottom:0px}.mobile-icon img{float:left;width:32px;margin-top:-2px;margin-right:15px;margin-left:-10px}#topics{background-image:url(/sites/niehs-kids/themes/custom/niehs_kids/web-resources/images/icon-nav-topics.svg)}#topics.white{background-image:url(/sites/niehs-kids/themes/custom/niehs_kids/web-resources/images/icon-nav-topics-white.svg)}#games{background-image:url(/sites/niehs-kids/themes/custom/niehs_kids/web-resources/images/icon-nav-games.svg)}#games.white{background-image:url(/sites/niehs-kids/themes/custom/niehs_kids/web-resources/images/icon-nav-games-white.svg)}#activities{background-image:url(/sites/niehs-kids/themes/custom/niehs_kids/web-resources/images/icon-nav-activities.svg)}#activities.white{background-image:url(/sites/niehs-kids/themes/custom/niehs_kids/web-resources/images/icon-nav-activities-white.svg)}#lessons{background-image:url(/sites/niehs-kids/themes/custom/niehs_kids/web-resources/images/icon-nav-lessons.svg)}#lessons.white{background-image:url(/sites/niehs-kids/themes/custom/niehs_kids/web-resources/images/icon-nav-lessons-white.svg)}#menu-topics{color:#5c8012}#menu-activities{color:#01727a}#menu-topics a{color:#5c8012}@media all and (min-width:769px)and (max-width:1100px){#menu-topics a{color:#5c8012}}#menu-activities a{color:#01727a}@media all and (min-width:769px)and (max-width:1100px){#menu-activities a{color:#01727a}}#menu-games a{color:#cb2e71}#menu-games a:hover{text-decoration:underline}#menu-lessons a{color:#7f1e57}#menu-lessons a:hover{text-decoration:underline}#mobile-search-container #mobile-search{border:#e6e6e7 solid 2px;padding:1rem;font-family:"arvo-regular";font-size:1.15rem;width:95%;background-image:url(/sites/niehs-kids/themes/custom/niehs_kids/web-resources/images/vector-search.svg);background-repeat:no-repeat;background-position:right;-webkit-appearance:none}#mobile-search-container #mobile-search-submit{float:right;position:absolute;right:13px;height:60%;opacity:0;cursor:pointer}a[class^=nav-]{font-size:85%}@media screen and (min-width:768px)and (max-width:1100px){a[class^=nav-]{font-size:67%}}@media all and (min-width:769px)and (max-width:1100px){header nav .menu-item .icon img{width:30px;height:30px;margin-right:10px}}ul a{text-decoration:none}::-webkit-input-placeholder{color:#646464}:-moz-placeholder{color:#646464}::-moz-placeholder{color:#646464}:-ms-input-placeholder{color:#646464}.nav-roll{font-size:1.1rem}.nav-roll:hover{text-decoration:underline}.lines-button{display:none}@media screen and (max-width:768px){.lines-button{display:inline-block;padding:20px 10px 0px;transition:.3s;cursor:pointer;width:60px;-webkit-user-select:none;-moz-user-select:none;user-select:none;border-radius:3px;margin:12px 5px 5px;font-size:12px}}.lines-button .lines{display:none}@media screen and (max-width:768px){.lines-button .lines{display:block;width:30px;height:3px;background:#37474f;border-radius:1.8px;transition:.4s;position:relative;top:-27px;left:3px}.lines-button .lines:before,.lines-button .lines:after{display:block;width:30px;height:3px;background:#37474f;border-radius:1.8px;transition:.4s;position:absolute;left:0;content:"";transform-origin:1.28571px center}.lines-button .lines:before{top:6px;transform:rotate(0deg)}.lines-button .lines:after{bottom:6px;transform:rotate(0deg)}}.lines-button.open .lines{left:7px;top:-28px;background:rgba(0,0,0,0);transition:.7s cubic-bezier(0.68,-0.55,0.35,1)}.lines-button.open .lines:before,.lines-button.open .lines:after{width:25px;height:3px}.lines-button.open .lines:before{top:10px;transform:rotate(-45deg);transition:.7s cubic-bezier(0.68,-0.55,0.35,1)}.lines-button.open .lines:after{transform:rotate(45deg);transition:.7s cubic-bezier(0.68,-0.55,0.35,1)}.expand_button{text-indent:-9000px;float:left;width:58px;height:55px;border-left:1px solid rgba(182,177,177,.4);margin-top:2px;cursor:pointer}.expand_button .expand_lines{display:block;width:25px;height:3px;background:#888;border-radius:2px;position:relative;margin:0 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(max-width:768px){#nav-activities,.nav-activities{border-bottom:1px solid #555}}#nav-activities .open .expand_lines,.nav-activities .open .expand_lines{background:#01727a}#nav-activities .open .expand_lines:after,.nav-activities .open .expand_lines:after{background:#01727a}#mobileNavButton:focus{border:2px #000;border-style:solid}#mobileNavButton:focus-visible{border:2px #000;border-style:solid}#header-nav{position:absolute;right:95px;top:64px}@media screen and (min-width:768px)and (max-width:1100px){#header-nav{right:0}}@media screen and (max-width:768px){#header-nav{display:none}}#header-nav nav{font-family:"arvo-bold";height:70px;position:absolute;right:60px;min-width:745px}@media screen and (min-width:1101px)and (max-width:1369px){#header-nav nav{right:-172px}}@media screen and (min-width:768px)and (max-width:1100px){#header-nav nav{right:-272px}}@media screen and (max-width:768px){#header-nav nav{position:static}}#header-nav nav ul{width:120px;margin-right:26px}@media screen and (min-width:768px)and (max-width:1100px){#header-nav nav ul{width:104px;margin-right:0;margin-left:0}}#header-nav nav ul a{color:#fff;text-decoration:none}@media screen and (max-width:768px){#header-nav nav ul a{color:#666}}@media screen and (max-width:768px){#header-nav nav ul a .nav-roll-forced{margin-top:18px;display:inline-block;height:18px !important}}#header-nav nav ul a:hover span.nav-roll-forced{border-bottom:solid 2px}#header-nav nav ul a.nav-topics-a,#header-nav nav ul a.nav-games-a,#header-nav nav ul a.nav-activities-a,#header-nav nav ul a.nav-lessons-a{margin-left:-7px;display:block;width:78%;height:58px}@media screen and (min-width:768px)and (max-width:1100px){#header-nav nav ul a.nav-topics-a,#header-nav nav ul a.nav-games-a,#header-nav nav ul a.nav-activities-a,#header-nav nav ul a.nav-lessons-a{height:52px}}@media screen and (max-width:768px){#header-nav nav ul a.nav-topics-a,#header-nav nav ul a.nav-games-a,#header-nav nav ul a.nav-activities-a,#header-nav nav ul a.nav-lessons-a{height:58px;width:230px;float:left}}#header-nav nav ul a.nav-games-a{margin-left:-5px}#header-nav nav ul a.nav-lessons-a{margin-left:-10px}#header-nav nav ul a:hover.nav-topics-a{color:#5c8012}#header-nav nav ul a:hover.nav-games-a{color:#cb2e71}#header-nav nav ul a:hover.nav-activities-a{color:#01727a}#header-nav nav ul a:hover.nav-lessons-a{color:#7f1e57}#header-nav nav .menu-item ul li ul{display:none}@media screen and (max-width:768px){#header-nav nav .menu-item ul li ul{margin-top:0}}#header-nav nav .menu-item.menu-topics:hover,#header-nav nav .menu-item.menu-topics.selected{border-bottom:solid #5c8012 14px}@media all and (min-width:769px)and (max-width:1100px){#header-nav nav .menu-item.menu-topics:hover,#header-nav nav .menu-item.menu-topics.selected{border-bottom:solid #5c8012 8px}}@media screen and (max-width:768px){#header-nav nav .menu-item.menu-topics:hover,#header-nav nav .menu-item.menu-topics.selected{border-bottom:0}}#header-nav nav 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.gamepage-tile-title{width:100%;font-family:arvo-bold;position:absolute;bottom:0;font-size:1.5rem;text-align:center;color:#fff;padding-top:20px;padding-bottom:20px;background:#cb2e71 url(/sites/niehs-kids/themes/custom/niehs_kids/web-resources/images/games-reflection.png) bottom right no-repeat;background-position-x:140%}@media all and (max-width:768px){#games-collection{width:100%;overflow:hidden}#games-collection>.clearfix,#games-collection>section:after{display:block}#games-collection .outer-center{width:92%}#games-collection .outer-center .inner-center{width:100%;margin-bottom:30px}#games-collection .outer-center .inner-center #games-options{width:100%}#games-collection .outer-center .inner-center #games-options ul.mobile-filter{width:100%;clear:both}#games-collection .outer-center .inner-center #games-options ul.mobile-filter li{background-color:#fff;list-style:none;border:#fff solid 4px;border-top:#ccc solid 2px;border-bottom:none;width:100%}#games-collection .outer-center 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