效果图如下：
话不多说，上代码：
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>炫彩流光圆环</title> <style> *{ margin: 0; padding: 0; box-sizing: border-box; } body{ 100vw; height: 100vh; background-color: #505050; display: grid; place-items:center; } .box{ 400px; height: 400px; background: url(./pig.jpg); border-radius: 50%; display: grid; place-items:center; position: relative; color:#fff; } .box::before{ content: ""; 400px; height: 400px; background:linear-gradient(0deg,#3498db,#8e44ad,#2ecc71,#e74c3c); border-radius: 50%; position: absolute; filter:blur(10px); animation: rotate 10s linear infinite 0s; } .box>div{ 300px; height: 300px; background-color: #505050; border-radius: 50%; z-index: 2; display: grid; place-items: center; } @keyframes rotate { to{ transform: rotate(360deg); } } </style> </head> <body> <div class="box"> <div></div> </div> </body> </html>