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使用@keyframes rotation关键帧动画，让圆环从 0 度旋转到 360 度，实现发光彩色圆环特效的卡片
HTML
<!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>Document</title>
<link rel="stylesheet" href="./css/index.css">
</head>
<body>
<div class="container">
<div class="card">
<div class="card-content"></div>
</div>
</div>
</body>
</html>
CSS
* {
padding: 0px;
margin: 0px;
}
.container {
display: flex;
align-items: center;
justify-content: center;
background: #202020;
height: 100vh;
}
.card {
position: relative;
height: 300px;
width: 250px;
background: #202020;
border-radius: 4px;
box-shadow: 0px 0px 10px 1px #000;
overflow: hidden;
}
.card::before {
position: absolute;
top: -100px;
content: '';
width: 250px;
height: 160%;
background: linear-gradient(90deg, transparent,
#ff1e00, transparent);
animation: rotation 5000ms infinite linear;
}
.card-content {
position: absolute;
top: 0.5%;
left: 0.5%;
width: 99%;
height: 99%;
background-color: #151515;
border-radius: 5px;
color: white;
}
@keyframes rotation {
0% {
transform: rotateZ(0deg);
}
0% {
transform: rotateZ(360deg);
}
}