【第23期】仅使用css制作粒子效果的动画背景
2023-04-02
html代码：
<!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>仅css动画背景粒子效果</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="container">
<div class="particles">
<span style="--i:11;"></span>
<span style="--i:12;"></span>
<span style="--i:21;"></span>
<span style="--i:10;"></span>
<span style="--i:25;"></span>
<span style="--i:18;"></span>
<span style="--i:13;"></span>
<span style="--i:26;"></span>
<span style="--i:14;"></span>
<span style="--i:27;"></span>
<span style="--i:15;"></span>
<span style="--i:22;"></span>
<span style="--i:17;"></span>
<span style="--i:16;"></span>
<span style="--i:28;"></span>
<span style="--i:19;"></span>
<span style="--i:20;"></span>
<span style="--i:23;"></span>
<span style="--i:24;"></span>
<span style="--i:29;"></span>
<span style="--i:11;"></span>
<span style="--i:12;"></span>
<span style="--i:21;"></span>
<span style="--i:10;"></span>
<span style="--i:25;"></span>
<span style="--i:18;"></span>
<span style="--i:13;"></span>
<span style="--i:26;"></span>
<span style="--i:14;"></span>
<span style="--i:27;"></span>
<span style="--i:15;"></span>
<span style="--i:22;"></span>
<span style="--i:17;"></span>
<span style="--i:16;"></span>
<span style="--i:28;"></span>
<span style="--i:19;"></span>
<span style="--i:20;"></span>
<span style="--i:23;"></span>
<span style="--i:24;"></span>
<span style="--i:29;"></span>
</div>
</div>
</body>
</html>
css代码：
*
{
margin:0;
padding:0;
box-sizing: border-box;
}
body
{
display: flex;
justify-content: center;
align-items: center;
min-height: 100vh;
background:#09111d;
}
.container
{
position:relative;
width:100%;
height:100vh;
overflow: hidden;
}
.particles
{
position:relative;
display: flex;
z-index: 1;
padding:0 20px;
}
.particles span
{
position:relative;
bottom:30px;
width:30px;
height:30px;
background:#4fc3dc;
box-shadow: 0 0 0 10px #4fcedc44,
0 0 50px #4fc3dc,
-100px 0 #4fc3dc99,
100px 0 #ff2d7599;
margin: 0 4px;
border-radius: 50%;
animation:animate 15s ease infinite;
animation-duration: calc(125s / var(--i));
}
.particles span:nth-child(even)
{
background:#ff2d75;
box-shadow: 0 0 0 10px #ff2d7544,
0 0 50px #ff2d75,
-100px 0 #4fc3dc99,
100px 0 #4fc3dc99;
}
@keyframes animate
{
0%
{
transform: translateY(120vh) scale(0) rotate(0deg);
}
20%
{
transform: translateY(100vh) scale(1) rotate(0deg);
}
100%
{
transform: translateY(-50vh) scale(0.5) rotate(360deg);
}
}
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