<template>
 <div>
 <div :class='{"itemCount":true,"leftT":!leftShow,"left":leftShow}'>//这种写法是动态获取样式
 <div style="font-size:60px;">表格数据</div>
 <div>//下面就是弹框内的样式。按自己需要放样式（我这里拿表格举例吧）
  <el-table :data="tableData"
   style="width: 100%">
  <el-table-column prop="date"
    label="日期"
    width="150">
  </el-table-column>
  <el-table-column label="配送信息">
  <el-table-column prop="name"
    label="姓名"
    width="120">
  </el-table-column>
  <el-table-column label="地址">
  <el-table-column prop="province"
     label="省份"
     width="120">
  </el-table-column>
  <el-table-column prop="city"
     label="市区"
     width="120">
  </el-table-column>
  <el-table-column prop="address"
     label="地址"
     width="300">
  </el-table-column>
  <el-table-column prop="zip"
     label="邮编"
     width="120">
  </el-table-column>
  </el-table-column>
  </el-table-column>
  </el-table>
 </div>
 </div>
 </div>
</template>
export default {
 data(){
 leftShow:false
}
}
<script>
</script>

<style lang='less' scoped> //下面是设置的样式。就可以实现了。
 .itemCount { 
 position: absolute;
 top: 30%;
 background: yellowgreen;
 height:600px;
 padding: 10px;
 width:1000px;
 z-index: 2
 }
 .left { 
 left:0; 
 transition: left 0.5s;
 }
 .leftT {
 left:-1200px;
 transition: left 0.5s;

</style>