Author 王平安
E-mail pingan8787@qq.com
博 客 www.pingan8787.com
微 信 pingan8787
每日文章 https://0x9.me/KMrv3

参考文章
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<!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>纯 CSS 创作闪闪发光的霓虹灯文字</title>
    <style>
        body {
            margin: 0;
            height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background-color: black;
        }
        
        .neon {
            position: relative;
            overflow: hidden;
            /* 调高亮度 */
            filter: brightness(200%);
        }
        
        .text {
            background-color: black;
            color: white;
            font-size: 80px;
            font-weight: bold;
            font-family: sans-serif;
            text-transform: uppercase;
            /* 文字不能被选中 */
            user-select: none;
        }
        
        .text::before {
            /* 用伪元素和数据属性增加文字，产生描边效果 */
            content: attr(data-text);
            position: absolute;
            color: white;
            filter: blur(0.02em);
            /* 用混色模式产生描边效果 */
            mix-blend-mode: difference;
        }
        
        .gradient {
            position: absolute;
            /* 设置渐变色背景 */
            background: linear-gradient(45deg, red, gold, lightgreen, gold, red);
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            /* 设置渐变色背景 */
            mix-blend-mode: multiply;
        }
        
        .spotlight {
            position: absolute;
            top: -100%;
            left: -100%;
            right: 0;
            bottom: 0;
            /* 用径向渐变制作光影背景 */
            background: 
	            radial-gradient(
	            	circle, white, transparent 25%
	            	) center / 25% 25%, 
	            radial-gradient(
	            	circle, white, black 25%
	            	) center / 12.5% 12.5%;
            animation: light 5s linear infinite;
            mix-blend-mode: color-dodge;
        }
        /* 设置光影移动的动画效果 */
        
        @keyframes light {
            to {
                transform: translate(50%, 50%);
            }
        }
    </style>
</head>
<body>
    <div class="neon">
        <span class="text" data-text="thanks">thanks</span>
        <span class="gradient"></span>
        <span class="spotlight"></span>
    </div>
</body>
</html>