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button:hover,#footer .navigation-button:hover{background-color:rgba(50,50,50,.2)}.media-controls button:focus,#footer .navigation-button:focus{outline:2px solid #fefefe;outline-offset:-2px}.media-controls button.highlight,#footer .highlight.navigation-button{background-color:rgba(255,255,255,.1)}#footer{display:-ms-flexbox;display:flex;-ms-flex-pack:justify;justify-content:space-between;position:fixed;bottom:0px;left:0;right:0;background:#555;height:40px;font-size:.875rem}@media(max-width: 640px){.audio-visible #footer{height:80px}}#footer .navigation-button{width:80px}#footer .navigation-button:hover,#footer .navigation-button:focus{background-color:rgba(50,50,50,.2)}#footer #prev-btn{text-align:right;padding-right:10px;background-position:-600px -5px;transition:.1s background-position ease-in}[data-whatinput=mouse] #footer #prev-btn:hover{background-position:-610px -5px}[data-whatinput=keyboard] #footer #prev-btn:focus{background-position:-610px -5px}@media(max-width: 800px){#footer #prev-btn{background-position:-600px -5px}}@media(max-width: 640px){#footer #prev-btn{position:absolute;left:0;bottom:0}}#footer #next-btn,#footer #return-btn{text-align:left;padding-left:10px;background-position:-700px -5px;transition:.1s background-position ease-in}[data-whatinput=mouse] #footer #next-btn:hover,[data-whatinput=mouse] #footer #return-btn:hover{background-position:-690px -5px}[data-whatinput=keyboard] #footer #next-btn:focus,[data-whatinput=keyboard] #footer #return-btn:focus{background-position:-690px -5px}#footer #next-btn:before,#footer #return-btn:before{content:"Next"}#footer #next-btn.return-btn,#footer #return-btn.return-btn{background-image:none}#footer #next-btn.return-btn:before,#footer #return-btn.return-btn:before{content:"Return"}@media(max-width: 640px){#footer #next-btn,#footer #return-btn{position:absolute;right:0;bottom:0}}#footer #slide-counter{width:100px;text-align:center;color:#fff;line-height:40px;margin-right:auto}#footer #slide-counter+#media-wrapper{margin-left:-100px}@media screen and (max-width: 1100px){#footer #slide-counter+#media-wrapper{padding-left:2rem}}@media(max-width: 640px){#footer #slide-counter{position:absolute;bottom:0;left:50%;transform:translateX(-50%)}#footer #slide-counter+#media-wrapper{margin-left:0;padding-left:0}}#fullscreen-btn{background-position:-310px -5px}.is-fullscreen #fullscreen-btn{background-position:-370px -5px}.no-fullscreen #fullscreen-btn{display:none}#info-btn{background-position:-430px -5px}#slides-container{position:fixed;top:3.75rem;bottom:40px;background:#f3f3f3;width:100%;overflow-x:hidden;overflow-y:auto}@media(max-width: 640px){#slides-container{top:3rem}.audio-visible #slides-container{bottom:80px}}.smooth-scroll #slides-container{scroll-behavior:smooth}.no-header #slides-container{top:0}.no-footer #slides-container{bottom:0}#slides-wrapper{position:relative;width:100%;max-width:800px;margin:0 auto;height:100%;margin-left:calc((100vw - 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