vue css 实现在盒子中居中对齐

<template>
  <div>
    <div class="wrapper">
      <div class="wrapper-content" v-for="item in dataList">
        <div class="child-box">
          <span class="child-font">{{item.id}}</span>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
export default {
  name: 'Test',
  data () {
    return {
      dataList: [
        { id: 1, name: 'F1' },
        { id: 2, name: 'F2' },
        { id: 3, name: 'F3' },
        { id: 4, name: 'F4' },
        { id: 5, name: 'F5' },
        { id: 6, name: 'F6' },
        { id: 7, name: 'F6' },
      ]
    }
  },
}
</script>

<style scoped>

.wrapper{
  width: 100%;
  height: auto;
  display: flex;
  justify-content: space-between;
  flex-direction: row;
  flex-wrap: wrap;
}
.wrapper-content{
  width: 33%;
  margin-top: 20px;
}

/*
在盒子中水平垂直居中
*/
.child-box {
  box-shadow: 0 0 30px 2px #918f8f;
  width: 300px;
  height: 200px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  margin: 0 auto;
  text-align: center;
}
.child-font {
  color: #2D71DB;
}

</style>