.question-topic .header{padding-bottom:20px;border-bottom:1px solid #ddd}.question-topic .el-form{width:1000px;margin:0 auto}.question-topic .bg-content{background:#f9f9f9;padding:20px}.question-topic .add-btn{color:#4a97eb;background:rgba(74,151,235,.07);border:1px dashed #4a97eb;border-radius:3px;cursor:pointer;text-align:center;margin-left:150px;margin-right:25px}