祥云背景

by jkhaoqi110

HTML

<div class="background"></div>

CSS

.background {
  display: block;
  width: 100vw;
  height: 100vh;
  background-color: #a13300;
  background-image: url(data:image/png;base64,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);
  background-repeat: repeat;
  background-size: auto;
}