react或者vue 如何实现ChatGPT 光标文字追随 效果？

我自己实现了

&:last-child{
// 如果ai输出结束了，刚不显示伪元素after
  .stop > *:last-child{
    &:after{
      content: none !important;
    }
  }
  // 节点空时设置光标跟随
  .chat:empty{
    position: relative;
    &:after{
      display: inline-block;
      content: "";
      width: 4px;
      height: 14px;
      transform: translate(4px,2px) scaleY(1.3);
      background-color: #80c9ff;
      animation: cursor .6s infinite;
      overflow-wrap: break-word;
      box-sizing: border-box;
    }
  }
  // 获取最后一个子节点并设置光标跟随
  .chat > *:last-child {
    position: relative;
    &:after{
      display: inline-block;
      content: "";
      width: 4px;
      height: 14px;
      transform: translate(4px,2px) scaleY(1.3);
      background-color: #80c9ff;
      animation: cursor .6s infinite;
      overflow-wrap: break-word;
      box-sizing: border-box;
    }
  }
}