侧边栏(HTML+CSS+JS)

在这里插入图片描述
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>侧边栏</title>
    <style>
      * {
      
      
        margin: 0;
        padding: 0;
      }
      ul {
      
      
        list-style: none;
      }
      .sidebar {
      
      
        position: fixed;
        top: 0;
        width: 300px;
        height: 100%;
        border-left: 3px solid #7a6e6e;
        background-color: #7a6e6e;
        transition: all 0.5s;
      }
      .sidebar.show {
      
      
        right: 0;
      }
      .sidebar.hide {
      
      
        right: -300px;
      }
      .sidebar .btn {
      
      
        position: absolute;
        left: -35px;
        width: 35px;
        height: 35px;
        border-radius: 5px 0 0 5px;
        background-color: #7a6e6e;
        background-size: 35px 35px;
      }
      .sidebar .btn.open {
      
      
        background-image: url(../images/icon/list.png);
      }
      .sidebar .btn.close {
      
      
        background-image: url(../images/icon/cross.png);
      }
      .sidebar .content {
      
      
        position: absolute;
        left: 0;
        top: 0;
        bottom: 0;
        width: 300px;
        background-color: yellow;
        z-index: 10;
      }
      .sidebar .nav_list {
      
      
        position: absolute;
        left: -35px;
        top: 50%;
        transform: translateY(-50%);
      }
      .sidebar .nav_list li {
      
      
        width: 35px;
        height: 35px;
        position: relative;
      }
      .sidebar .nav_list li i {
      
      
        display: block;
        width: 35px;
        height: 35px;
        background-color: #7a6e6e;
        background-image: url(../images/icon/toolbars.png);
        background-position: -87px -174px;
        transition: background-color 0.5s;
      }
      .sidebar .nav_list li span {
      
      
        position: absolute;
        left: 35px;
        top: 0;
        width: 70px;
        height: 35px;
        line-height: 35px;
        text-align: center;
        background-color: #7a6e6e;
        transition: all 0.5s;
      }
      .sidebar .nav_list li:hover i {
      
      
        background-color: pink;
        background-position: -87px -203px;
      }
      .sidebar .nav_list li:hover span {
      
      
        background-color: pink;
        left: -70px;
      }
    </style>
  </head>
  <body>
    <div class="sidebar hide">
      <!-- 按钮区域 -->
      <div class="btn open"></div>
      <!-- 内容区 -->
      <div class="content"></div>
      <!-- 侧边导航 -->
      <ul class="nav_list">
        <li>
          <i></i>
          <span>商城会员</span>
        </li>
        <li>
          <i></i>
          <span>商城会员</span>
        </li>
        <li>
          <i></i>
          <span>商城会员</span>
        </li>
        <li>
          <i></i>
          <span>商城会员</span>
        </li>
      </ul>
    </div>
    <script>
      let sidebar = document.querySelector(".sidebar");
      let btn = document.querySelector(".sidebar .btn");
      let flag = false;
      btn.onclick = function () {
      
      
        flag = !flag;
        if (flag) {
      
      
          sidebar.className = "sidebar show";
          btn.className = "btn close";
        } else {
      
      
          sidebar.className = "sidebar hide";
          btn.className = "btn open";
        }
      };
    </script>
  </body>
</html>
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