YYishare无JS，纯CSS实现聚光灯效果。html和css如下。
效果图：
html代码：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>聚光灯效果</title>
<link rel="stylesheet" type="text/css" href="./css/style.css">
</head>
<body>
<h1>SPOTLIGHT</h1>
</body>
</html>
CSS代码：
*{
margin: 0;
padding: 0;
}
body{
background: #222;
display: flex;
justify-content: center;
align-items: center;
min-height: 100vh;
}
h1{
color: #333;
font-size: 8rem;
position: relative;
}
h1::after{
content: "SPOTLIGHT";
color: transparent;
position: absolute;
left: 0;
top: 0;
background: -webkit-linear-gradient(left,#c23616,#192a56,#00d2d3,yellow,
#6D214f,#2e86de,#4cd137,#e84118);
background-clip: text;
-webkit-background-clip: text;
clip-path: circle(100px at 0% 50%);
-webkit-clip-path: circle(100px at 0% 50%);
animation: light 5s infinite;
}
@keyframes light{
0%{
clip-path: circle(100px at 0% 50%);
-webkit-clip-path: circle(100px at 0% 50%);
}
50%{
clip-path: circle(100px at 100% 50%);
-webkit-clip-path: circle(100px at 100% 50%);
}
100%{
clip-path: circle(100px at 0% 50%);
-webkit-clip-path: circle(100px at 0% 50%);
}
}
