#box{position:relative;height:1080px;width:1920px}#box-menu{width:95%}#box .div-part,#box .part{height:1080px;width:1920px;position:absolute;top:0;left:0}.slidecontainer,.slider{width:100%}.slider{-webkit-appearance:none;height:15px;border-radius:5px;background:#d3d3d3;outline:none;opacity:.7;transition:opacity .2s}.slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:25px;height:25px;border-radius:50%;background:#4caf50;cursor:pointer}.slider::-moz-range-thumb{width:25px;height:25px;border-radius:50%;background:#4caf50;cursor:pointer}.slider:hover{opacity:1}