代码效果

#nr{ font-size:20px; margin: 0; background: -webkit-linear-gradient(left, #ffffff, #ff0000 6.25%, #ff7d00 12.5%, #ffff00 18.75%, #00ff00 25%, #00ffff 31.25%, #0000ff 37.5%, #ff00ff 43.75%, #ffff00 50%, #ff0000 56.25%, #ff7d00 62.5%, #ffff00 68.75%, #00ff00 75%, #00ffff 81.25%, #0000ff 87.5%, #ff00ff 93.75%, #ffff00 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-size: 200% 100%; animation: masked-animation 2s infinite linear; } @keyframes masked-animation { 0% { background-position: 0 0; } 100% { background-position: -100%, 0; } }

代码

<style>
    #nr{
    	font-size:20px;
    	margin: 0;
        background: -webkit-linear-gradient(left,
            #ffffff,
            #ff0000 6.25%,
            #ff7d00 12.5%,
            #ffff00 18.75%,
            #00ff00 25%,
            #00ffff 31.25%,
            #0000ff 37.5%,
            #ff00ff 43.75%,
            #ffff00 50%,
            #ff0000 56.25%,
            #ff7d00 62.5%,
            #ffff00 68.75%,
            #00ff00 75%,
            #00ffff 81.25%,
            #0000ff 87.5%,
            #ff00ff 93.75%,
            #ffff00 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-size: 200% 100%;
        animation: masked-animation 2s infinite linear;
    }
    @keyframes masked-animation {
        0% {
            background-position: 0 0;
        }
        100% {
            background-position: -100%, 0;
        }
    }
</style>
	<div style="background-color:#333;border-radius:25px;box-shadow:0px 0px 5px #f200ff;padding:5px;margin-top:10px;margin-bottom:0px;">
		<marquee>
<b id="nr">公告:欢迎来到西瓜社区 www.xg6.cn ●●源码和教程纯属是记录自己 研究和复习用途 切勿用于非法用途</b> </marquee>
	</div>