.scroll-to-top{padding:2px;text-align:center;position:fixed;z-index:10001;bottom:5px;display:none;left:20px}.scroll-to-top>i{display:inline-block;font-size:32px;opacity:.7;filter:alpha(opacity=70)}.scroll-to-top:hover{cursor:pointer}.scroll-to-top:hover>i{opacity:1;filter:alpha(opacity=100)}