同心旋转圆弧

news2024/11/24 2:25:03

效果如图:

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>Document</title>

  <style>
    html,
    body,
    .circle {
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: center;
      background-color: aliceblue;
    }

    .circle {
      width: 10em;
      height: 10em;
      border-width: 0.4em;
      border-style: solid;
      border-radius: 50%;
      border-left-color: transparent;
      border-right-color: transparent;
      border-top-color: red;
      border-bottom-color: blue;
      position: relative;
      animation: animate 2s ease-in-out infinite alternate;
    }
    .circle::before {
      content: '';
      position: absolute;
      width: 75%;
      height: 75%;
      border-width: 0.4em;
      border-style: solid;
      border-radius: 50%;
      border-left-color: transparent;
      border-right-color: transparent;
      border-top-color: orange;
      border-bottom-color: cyan;
      animation: animate 4s ease-in-out infinite alternate;
    }
    .circle::after {
    content: '';
    position: absolute;
    width: 50%;
    height: 50%;
    border-width: 0.4em;
    border-style: solid;
    border-radius: 50%;
    border-left-color: transparent;
    border-right-color: transparent;
    border-top-color: yellow;
    border-bottom-color: limegreen;
      animation: animate 8s ease-in-out infinite alternate;
  }

  @keyframes animate {
    from {
      transform: rotate(0deg);
    }
    to {
      transform: rotate(720deg)
    }
  }
  </style>
</head>
<body>
  <div class="circle"></div>
</body>
</html>