body{padding:0;margin:0;font-weight:500;line-height:1.5}body a{text-decoration:none}body ul{list-style:none}body img,body ul{padding:0;margin:0}#app{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:#000;background:#fff}#app .index{position:relative}#app .index .el-menu{width:100%;position:fixed;top:0;z-index:10}