How does el-select in el-form-item adapt to the width

Setting a fixed value in el-select such as style=”width:100px” is effective.

 <el-form-item>
        <el-select v-model="DataQuery.data" clearable placeholder="请选择" style="width:180px">
          <el-option label="实时数据" value="1"/>
          <el-option label="1小时数据" value="2"/>
          <el-option label="2小时数据" value="3"/>
          <el-option label="6小时数据" value="4"/>
          <el-option label="12小时数据" value="5"/>
          <el-option label="24小时数据" value="6"/>
        </el-select>
      </el-form-item>

So it works