效果图： 

父组件

 

<template>
  <div class="app-container home">
    <!--    <el-divider />-->
    <el-row
      type="flex"
      justify="space-around"
      class="row-bg"
      style="margin-bottom: 10px"
    >
      <el-col :span="9">
        <el-row type="flex" justify="space-around" class="row-bg">
          <el-col :span="24">
            <el-card class="box-card" style="height: 300px; margin-bottom: 3px">
              <cpk-echart></cpk-echart>
            </el-card>
          </el-col>
        </el-row>
        <el-row type="flex" justify="space-around" class&#