HTML

[tabs]

[tab title="代码"]

   <style>#nr{    font-size:15px;    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><center><b id="nr">这里写要修改的文字</b><br></center>

[/tab]

[tab title="效果"]

这里写要修改的文字

[/tab]

[/tabs]