.mock header,.mock footer{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:var(--glass)}#overlayContent>*{display:none;transition:opacity .6s ease,top .6s ease,left .6s ease,width .6s ease,height .6s ease}.mock #overlayContent>*{display:block}#background_video{opacity:0;position:absolute;top:0;left:0;width:100%;height:100%;z-index:0}#webcam_top{position:absolute;top:0;left:0;width:100%;height:100%;z-index:1;opacity:0}#webcam_top_video{position:relative;top:0;left:0;width:100%;height:100%;transition:top .6s ease,left .6s ease,width .6s ease,height .6s ease}#webcam{opacity:0;position:absolute;width:640px;height:500px;overflow:hidden;border-radius:var(--border-radius);z-index:10}#webcam_side_video{position:relative;top:0;left:0;height:100%;width:auto;transition:top .6s ease,left .6s ease,width .6s ease,height .6s ease}#chat{opacity:0;position:absolute;border-radius:var(--border-radius);background:var(--glass);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:none;margin-left:auto;overflow:hidden;z-index:10}#chat iframe{border:none;width:100%;height:100%;-webkit-mask-image:linear-gradient(to bottom,#0000 10px,#000 96px);mask-image:linear-gradient(to bottom,#0000 10px,#000 96px)}#screen{position:absolute;top:0;left:0;width:100%;height:100%;background-size:cover;border-radius:var(--border-radius);opacity:0}.mock-cours-left #chat{opacity:1;top:112px;left:1264px;width:640px;height:500px}.mock-cours-left #webcam{opacity:1;top:112px;left:16px;width:640px;height:500px}.mock-cours-left #webcam_side_video{left:-20%}.mock-cours-left #webcam_top{opacity:1;top:0;left:0;width:1920px;height:1080px}.mock-cours-right #chat{opacity:1;top:112px;left:16px;width:640px;height:500px}.mock-cours-right #webcam{opacity:1;top:112px;left:1264px;width:640px;height:500px}.mock-cours-right #webcam_side_video{left:-20%}.mock-cours-right #webcam_top{opacity:1;top:0;left:0;width:1920px;height:1080px}.mock-discussion-left #background_video{opacity:1}.mock-discussion-left #webcam{opacity:1;top:112px;left:16px;width:1232px;height:888px}.mock-discussion-left #webcam_side_video{left:-20%}.mock-discussion-left #chat{opacity:1;top:112px;left:1264px;width:640px;height:888px}.mock-discussion-full-left #background_video{opacity:0}.mock-discussion-full-left #webcam{opacity:1;top:0;left:0;width:1920px;height:1080px;z-index:2;border-radius:0}.mock-discussion-full-left #webcam_side_video{left:0}.mock-discussion-full-left #chat{opacity:1;top:112px;left:1264px;width:640px;height:888px}.mock-discussion-right #background_video{opacity:1}.mock-discussion-right #chat{opacity:1;top:112px;left:16px;width:640px;height:888px}.mock-discussion-right #webcam{opacity:1;top:112px;left:672px;width:1232px;height:888px}.mock-discussion-right #webcam_side_video{left:-20%}.mock-discussion-full-right #background_video{opacity:0}.mock-discussion-full-right #chat{opacity:1;top:112px;left:16px;width:640px;height:888px}.mock-discussion-full-right #webcam{opacity:1;top:0;left:0;width:1920px;height:1080px;z-index:2;border-radius:0}.mock-discussion-full-right #webcam_side_video{left:0}.mock-ecran-left #background_video{opacity:1}.mock-ecran-left #chat{opacity:1;top:112px;left:16px;width:640px;height:500px}.mock-ecran-left #screen{opacity:1;top:112px;left:672px;width:1232px;height:696px}.mock-ecran-left #webcam{opacity:1;top:628px;left:16px;width:640px;height:372px}.mock-ecran-left #webcam_side_video{left:-15%}.mock-ecran-right #background_video{opacity:1}.mock-ecran-right #chat{opacity:1;top:112px;left:1264px;width:640px;height:500px}.mock-ecran-right #screen{opacity:1;top:112px;left:16px;width:1232px;height:696px}.mock-ecran-right #webcam{opacity:1;top:628px;left:1264px;width:640px;height:372px}.mock-ecran-right #webcam_side_video{left:-15%}