简单的CSS背景，HTML/Vue代码在线实时编辑、预览

            
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            body {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  width: 100%;
  padding: 0;
  margin: 0;
  overflow: hidden;
}


.bg {
  position: absolute;
  display: flex;
  top: 0;
  left: 0;
  width: 100%;
  width: calc(100% + 70rem);
  height: calc(100% + 70rem);
  z-index: 1;
  gap: 2.5rem;
  background: #26335d;
  overflow: hidden;
  transform: skew(35deg);
}
.bg > div {
  position: relative;
  display: flex;
  width: 12.5%;
  background-image: linear-gradient(20deg, #192138, #192138 36%, #3e2d5c 0, #010824);
  border-right: 40px solid #E65C19;
}
.bg span {
  position: absolute;
  display: flex;
  width: 100%;
  height: 100%;
  background-image: repeating-linear-gradient(45deg, transparent, rgba(193, 194, 244, 0.1), transparent, rgba(193, 194, 244, 0.1), transparent);
  background-size: 350% 350%;
  z-index: 1;
}