.el-backtop{align-items:center;background-color:#fff;border-radius:50%;box-shadow:0 0 6px rgba(0,0,0,.12);color:#009ff3;cursor:pointer;display:flex;font-size:20px;height:40px;justify-content:center;position:fixed;width:40px;z-index:5}.el-backtop:hover{background-color:#f2f6fc}#t4f-scroll-to-top .el-backtop{background:#009ff3;height:50px;width:50px;z-index:80}#t4f-scroll-to-top img{height:30px;width:30px}@media(max-width:768px){#t4f-scroll-to-top .el-backtop{height:40px;width:40px}#t4f-scroll-to-top img{height:25px;width:24px}}