.upload-box .el-upload{display:block;width:360px;margin:0 auto}.codemirror{margin-top:20px;border:2px solid #578dbf;border-left-width:0;position:relative;height:400px}.CodeMirror{height:100%}.codemirror:before{position:absolute;font-size:17px;top:-30px;left:10px;content:"数据预览 :"}.xmlToJson{width:50%;height:400px;overflow:auto}.xmlToJson:before{position:absolute;font-size:17px;top:0;left:10px;content:"XML转JSON :"}