.cocoen{box-sizing:border-box;cursor:pointer;line-height:0;margin:0;overflow:hidden;padding:0;position:relative;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.cocoen *{box-sizing:inherit}.cocoen ::after,.cocoen ::before{box-sizing:inherit}.cocoen img,.cocoen picture>img{max-width:none}.cocoen>img,.cocoen>picture>img{display:block;width:100%}.cocoen>div:first-child,picture .cocoen>div{height:100%;left:0;overflow:hidden;position:absolute;top:0;width:50%}.cocoen-drag{background:#fff;bottom:0;cursor:ew-resize;left:50%;margin-left:-1px;position:absolute;top:0;width:2px}.cocoen-drag::before{border:3px solid #fff;content:'';height:30px;left:50%;margin-left:-7px;margin-top:-18px;position:absolute;top:50%;width:14px}.cocoen-drag::after{border:3px solid transparent;content:'';height:30px;left:50%;margin-left:-7px;margin-top:-18px;position:absolute;top:0;height:100%;width:14px}.con-back-top{position:fixed;right:2.70833%;bottom:20%;z-index:91;cursor:pointer;outline:0;width:52px;height:52px}.con-back-top img{width:100%;height:100%}.hover{display:none}.con-back-top:hover .origin{display:none}.con-back-top:hover .hover{display:block}