修改组件某个元素的样式的方法

<template>
  <!-- class="server_a" -->
  <div class="a">
    服务列表
    <div>
      <a-descriptions title="123" bordered>
        <a-descriptions-item label="服务列表">
          Cloud Database
        </a-descriptions-item>
      </a-descriptions>
    </div>
    <!-- 服务调用动态图 -->
    <div>
      <a-descriptions title="" layout="vertical" bordered>
        <a-descriptions-item label="服务调用动态图">
          Cloud Database
        </a-descriptions-item>
      </a-descriptions>
    </div>
  </div>
</template>



<style lang="scss" scoped>
 .a::v-deep { 
  .ant-descriptions-bordered .ant-descriptions-item-label {
    background-color: red;
  }  } 
  
  直接下面这种也行
  :v-deep { 
  .ant-descriptions-bordered .ant-descriptions-item-label {
    background-color: red;
  }
</style>

 scss 传送门: https://www.cnblogs.com/kaibindirver/p/17056789.html