css代码|网站加入彩色动态公告代码（彩色html代码）

<!--公告代码-->
<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：欢迎访问网络社区，本站每天准时更新各种资源教程 </b> </marquee>
    </div>
<!--公告代码-->