文章目录

• • 1、介绍
  • 2、布局
  • 3、鼠标移入变成 X

1、介绍

2、布局

  <style>
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
    }

    .hamburger {
      display: flex;
      flex-direction: column;
      justify-content: space-between;

      cursor: pointer;
      width: 40px;
      height: 40px;
      /* border: 1px solid red; */
    }

    .hamburger_line {
      height: 4px;
      background: rgb(203 213 225);
      transition: all .2s;
    }
  </style>
  <div class="hamburger">
    <div class="hamburger_line"></div>
    <div class="hamburger_line"></div>
    <div class="hamburger_line"></div>
  </div>

3、鼠标移入变成 X

1. 先旋转
2. 先位移，形成交叉
   

    /* X 号 */
    .hamburger:hover .hamburger_line:nth-child(2) {
      opacity: 0;
    }

    .hamburger:hover .hamburger_line:nth-child(1) {
      transform: translateY(19px) rotate(45deg);
    }

    .hamburger:hover .hamburger_line:nth-child(3) {
      transform: translateY(-17px) rotate(-45deg);
    }