.scrolltop{position:fixed;bottom:15px;text-align:center;padding:0;margin:0;cursor:pointer;z-index:60;transition:opacity .3s ease;visibility:visible}.scrolltop.hide{opacity:0}.scrolltop.left{left:15px}.scrolltop.left .customize-partial-edit-shortcut{margin-left:100%}.scrolltop.left .customize-partial-edit-shortcut button{left:-20px}.scrolltop.right{right:15px}.scrolltop.right .customize-partial-edit-shortcut{margin-left:-20px}.scrolltop i{height:35px;width:35px;display:block;font-size:20px;background:#333;color:#fff;position:relative;border-radius:3px;transition:all .3s linear}.scrolltop i:before{position:absolute;top:50%;left:50%;transform:translate(-50%,-51%)}