纯熟悉导航栏

顺晟科技
2022-09-15 21:13:40
140
效果图
<!DOCTYPE html>
<html lang="en">

<head>
      <meta charset="UTF-8">
      <meta name="viewport" content="width=device-width, initial-scale=1.0">
      <meta http-equiv="X-UA-Compatible" content="ie=edge">
      <title>Document</title>
</head>
<style>
      * {
            margin: 0;
            padding: 0;
            list-style: none;
      }

      .menu-container {
            background: #eee;
            height: 50px;
            margin: 100px 0;
      }

      .main {
            width: 1200px;
            height: 50px;
            margin: 0 auto;
            line-height: 50px;
      }

      .flex {
            display: flex;
            align-items: center;
            /*垂直居中*/
      }

      .main>div:first-child {
            height: 70px;
            width: 150px;
            background: rgb(2, 62, 85);
            color: #fff;
            transform: skew(-20deg);
            /*倾斜*/
            font-size: 30px;
            line-height: 70px;
            text-align: center;
            user-select: none;
            /* 禁止用户选择 */
            letter-spacing: 3px;
            /* 字体间距*/
      }

      .main>ul>li {
            padding: 0 20px;
            margin: 0 10px;
            color: rgb(2, 62, 85);
            font-weight: bold;
            cursor: pointer;
            position: relative;
      }

      .main>ul>li:hover .line {
            transform: scale(1);
            /*显示还原 */
            /* opacity: 1; */
      }

      .line {
            height: 4px;
            background: rgb(2, 62, 85);
            width: 75px;
            position: absolute;
            left: 0;
            transform: scale(0);
            /*隐藏 */
            /* opacity: 0;透明度 */
            transition: 1s;
            /*过度1s*/
      }
</style>

<body>
      <div class="menu-container">
            <div class="main flex">
                  <div>课程栏目</div>
                  <ul class="flex">
                        <li>语文
                              <div class="line"></div>
                        </li>
                        <li>数学
                              <div class="line"></div>
                        </li>
                        <li>英语
                              <div class="line"></div>
                        </li>
                        <li>历史
                              <div class="line"></div>
                        </li>
                        <li>体育
                              <div class="line"></div>
                        </li>
                  </ul>
            </div>
      </div>
</body>

</html>
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