一个简单的呼吸灯效果
图:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
body {
position: relative;
}
#ball {
position: relative;
width: 10px;
height: 10px;
border-radius: 50%;
}
#ball::after {
content: '';
position: absolute;
left: 0;
top: 0;
width: inherit;
height: inherit;
background-color: aqua;
will-change: transform;
box-shadow: 0 0 7px 10px aqua;
border-radius: 50%;
z-index: -1;
animation: fadeIn 2s infinite linear alternate-reverse;
}
@keyframes fadeIn {
from {
transform: scale(.5);
}
to {
transform: scale(1);
}
}
</style>
</head>
<body>
<div id="ball"></div>
</body>
</html>
