element-ui中Table聚光灯效果

<template>
  <el-table
    :data="tableData"
    border
    class="marking-table"
    :cell-class-name="cellClassName"
    :header-cell-class-name="headerCellClassName"
    @cell-mouse-enter="cellMouseEnter"
    @cell-mouse-leave="cellMouseLeave"
  >
    <el-table-column
      prop="date"
      label="Date"
      width="180"
    />
    <el-table-column
      prop="name"
      label="Name"
      width="180"
    />
    <el-table-column
      prop="address"
      label="Address"
    />