超炫酷SVG+CSS色彩流动背景动画

效果预览

html代码

<svg viewBox="0 0 100 100" preserveAspectRatio="xMidYMid slice">
    <defs>
      <radialGradient id="Gradient1" cx="50%" cy="50%" fx="10%" fy="50%" r=".5">
        <animate attributeName="fx" dur="34s" values="0%;3%;0%" repeatCount="indefinite" />
        <stop offset="0%" stop-color="#ff0" />
        <stop offset="100%" stop-color="#ff00" />
      </radialGradient>
       <radialGradient id="Gradient2" cx="50%" cy="50%" fx="10%" fy="50%" r=".5">
        <animate attributeName="fx" dur="23.5s" values="0%;3%;0%" repeatCount="indefinite" />
        <stop offset="0%" stop-color="#0ff" />
        <stop offset="100%" stop-color="#0ff0" />
      </radialGradient>
      <radialGradient id="Gradient3" cx="50%" cy="50%" fx="50%" fy="50%" r=".5">
        <animate attributeName="fx" dur="21.5s" values="0%;3%;0%" repeatCount="indefinite" />
        <stop offset="0%" stop-color="#f0f" />
        <stop offset="100%" stop-color="#f0f0" />
      </radialGradient>
    </defs>
    <rect x="0" y="0" width="100%" height="100%" fill="url(#Gradient1)">
      <animate attributeName="x" dur="20s" values="25%;0%;25%" repeatCount="indefinite" />
      <animate attributeName="y" dur="21s" values="0%;25%;0%" repeatCount="indefinite" />
      <animateTransform attributeName="transform" type="rotate" from="0 50 50" to="360 50 50" dur="17s" repeatCount="indefinite"/>
    </rect>
    <rect x="0" y="0" width="100%" height="100%" fill="url(#Gradient2)">
      <animate attributeName="x" dur="23s" values="-25%;0%;-25%" repeatCount="indefinite" />
      <animate attributeName="y" dur="24s" values="0%;50%;0%" repeatCount="indefinite" />
      <animateTransform attributeName="transform" type="rotate" from="0 50 50" to="360 50 50" dur="18s" repeatCount="indefinite"/>
    </rect>
      <rect x="0" y="0" width="100%" height="100%" fill="url(#Gradient3)">
      <animate attributeName="x" dur="25s" values="0%;25%;0%" repeatCount="indefinite" />
      <animate attributeName="y" dur="26s" values="0%;25%;0%" repeatCount="indefinite" />
      <animateTransform attributeName="transform" type="rotate" from="360 50 50" to="0 50 50" dur="19s" repeatCount="indefinite"/>
    </rect>
  </svg>
<div class="child">
狐狸库<br />huliku.com</div>

css代码