#el-tag{display:block;position:relative;width:200px;height:40px;line-height:40px;text-align:center;color:#eee;border-top-right-radius:0;border-bottom-right-radius:0}#el-tag:after{position:absolute;left:100%;top:0;content:"";border:20px solid #fff;border-top-color:transparent;border-right-color:transparent;border-bottom-color:transparent;border-left-color:#606266}