鼠标悬停显示三个下拉列表按钮

在这里插入图片描述
代码部分：

<!DOCTYPE html>
<html>

<head>
  <meta charset="utf-8" />
  <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
  <title>数据更新页面</title>
  <style type="text/css">
    #hoverBox {
      position: relative;
      width: 200px;
      height: 50px;
      background-color: #ddd;
      text-align: center;
      line-height: 50px;
      cursor: pointer;
    }

    #hoverBox::after {
      content: "";
      position: absolute;
      bottom: -10px;
      left: 50%;
      transform: translateX(-50%);
      border-style: solid;
      border-width: 10px 10px 0 10px;
      border-color: #fff transparent transparent transparent;
      display: none;
    }

    #popup {
      display: none;
      position: absolute;
      top: calc(100% + 10px);
      left: 50%;
      transform: translateX(-50%);
      background-color: #f9f9f9;
      border: 1px solid #ddd;
      padding: 10px;
      width: 200px;
      text-align: center;
      overflow: hidden;
    }

    #hoverBox:hover::after {
      display: block;
      border-color: red transparent transparent transparent;
    }
  </style>
</head>

<body>
  <div style="margin-top:100px;">
    <div id="hoverBox">
      鼠标悬停我试试
      <div id="popup">这是一个弹框！
        <div class="App">原生App安装包</div>
        <div class="wgt">wgt资源包</div>
      </div>
    </div>
  </div>
  <script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
  <script>
    const hoverBox = document.getElementById('hoverBox');
    const popup = document.getElementById('popup');
    hoverBox.addEventListener('mouseenter', function () {
      popup.style.display = 'block';
    });
    hoverBox.addEventListener('mouseleave', function () {
      popup.style.display = 'none';
    });

  // 监听点击事件 
 // 监听点击事件 
 const appElement = document.querySelector('.App');
  const wgtElement = document.querySelector('.wgt');

  appElement.addEventListener('click', function() {
    console.log('1111');
  });

  wgtElement.addEventListener('click', function() {
    console.log('2222');
  });
  </script>
</body>
</script>
</html>