Element ui table is a circular form, how to change the background color of the table to red when the field is empty.

what I want to do now is that one of the table background colors in element ui table turns red, but my table is cycled out, how to get the field value, how I now judge how to have a field empty in the middle, I want to turn the table background color into red.
Code
< el-table: data= "tableData" stripe highlight-current-row fit border style= "width:" @ sort-change= "handleSort" >

                <el-table-column width="180" prop="kequn" label="" show-overflow-tooltip fixed>
                    <template slot-scope="scope">
                        {{fhkequn(scope.row.kequn)}}
                    </template>
                </el-table-column>
                <el-table-column width="100" prop="name" label="" align="center" fixed></el-table-column>
                <el-table-column min-width="100" prop="account" label="" sortable="custom"></el-table-column>
                <el-table-column min-width="120" :prop="item.prop" :label="item.title" v-for="(item,index) in titleData" :key="index">
                  <template></template>
                </el-table-column>
            </el-table>