【前端设计】小球loading动画

欢迎来到前端设计专栏，本专栏收藏了一些好看且实用的前端作品，使用简单的html、css语法打造创意有趣的作品，为网站加入更多高级创意的元素。

在这里插入图片描述

html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <link rel="stylesheet" href="小球loading.css">
</head>
<body>
  <div class="loader">
    <span class="ball" style="--i:1"></span>
    <span class="shadow" style="--i:1"></span>
    <span class="ball" style="--i:2"></span>
    <span class="shadow" style="--i:2"></span>
    <span class="ball" style="--i:3"></span>
    <span class="shadow" style="--i:3"></span>
    <span class="ball" style="--i:4"></span>
    <span class="shadow" style="--i:4"></span>
    <span class="ball" style="--i:5"></span>
    <span class="shadow" style="--i:5"></span>
  </div>
</body>
</html>

css

* {
  margin: 0;
  padding: 0;
}
html {
  height: 100%;
}
body {
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  color: #333;
}
.loader {
  width: 650px;
  height: 200px;
  position: relative;
}
.loader  .ball {
  position: absolute;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: lightseagreen;
  left: calc(var(--i) * 100px);
  animation: jump 2s linear infinite calc(var(--i) * 0.3s);
}
.loader  .shadow {
  position: absolute;
  bottom: -12.5px;
  z-index: -1;
  width: 50px;
  height: 25px;
  background-color: #000;
  border-radius: 50%;
  left: calc(var(--i) * 100px);
  animation: shadow 2s linear infinite calc(var(--i) * 0.3s);
}
@keyframes jump {
  0%,
  100% {
    bottom: 150px;
  }
  40%,
  60% {
    bottom: 0;
    height: 50px;
  }
  50% {
    height: 25px;
    filter: hue-rotate(180deg);
  }
}
@keyframes shadow {
  0%,
  100% {
    transform: scale(2);
    opacity: 0.1;
    filter: blur(5px);
  }
  40%,
  60% {
    transform: scale(1);
    opacity: 1;
    filter: blur(2px);
  }
}