*{margin:0;padding:0;box-sizing:border-box}body,html{font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:#2c3e50}#app,body,html{height:100%}.el-header{padding:0 20px}.el-aside{padding:20px 0;transition:width .3s ease}.el-menu{border-right:none;height:100%;overflow:hidden}