旋转变色 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <link rel="stylesheet" href="try.css">
    <title>Document</title>
</head>
<body>
    <section>
        <div class="loader">
            <span style="--i:1;"></span>
            <span style="--i:2;"></span>
            <span style="--i:3;"></span>
            <span style="--i:4;"></span>
            <span style="--i:5;"></span>
            <span style="--i:6;"></span>
            <span style="--i:7;"></span>
            <span style="--i:8;"></span>
            <span style="--i:9;"></span>
            <span style="--i:10;"></span>
            <span style="--i:11;"></span>
            <span style="--i:12;"></span>
            <span style="--i:13;"></span>
            <span style="--i:14;"></span>
            <span style="--i:15;"></span>
            <span style="--i:16;"></span>
            <span style="--i:17;"></span>
            <span style="--i:18;"></span>
            <span style="--i:19;"></span>
            <span style="--i:20;"></span>
        </div>
    </section>
</body>
</html>
*
{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
section
{
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: black;
  animation: animateBg 10s linear infinite;
}
@keyframes animateBg
{
  0%
  {
    filter: hue-rotate(0deg);
  }
  100%
  {
    filter: hue-rotate(360deg);
  }
}
section .loader
{
  position: relative;
  width: 120px;
  height: 120px;
}
section .loader span
{
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transform: rotate(calc(18deg * var(--i)));
}
section .loader span::before
{
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: greenyellow;
  box-shadow: 0 0 10px greenyellow,
              0 0 20px greenyellow,
              0 0 40px greenyellow,
              0 0 60px greenyellow,
              0 0 80px greenyellow,
              0 0 100px greenyellow;
  animation: animate 2s linear infinite;
  animation-delay: calc(0.1s * var(--i));
}
@keyframes animate
{
  0%
  {
    transform: scale(1);
  }
  /* 这意味着80% ~ 100%均为0 */
  80%,100%
  {
    transform: scale(0);
  }
}

 

posted @ 2022-12-26 10:31  树叶本子  阅读(27)  评论(0)    收藏  举报