.is-required .ct-upload-wrap{position:relative}.is-required .ct-upload-wrap:after{content:"必填";display:inline-block;padding:2px 10px;background-color:red;color:#fff;position:absolute;right:0;top:10px;font-size:12px;line-height:14px;-webkit-transform:rotate(30deg);transform:rotate(30deg)}