css圆锥渐变卡

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html

css

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html

css

body {
  background-color: #1e293b;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  font-family: Helvetica;
}

.card {
  width: 400px;
  height: 400px;
  position: relative;
  border-radius: 40px;
  padding: 40px;
  box-sizing: border-box;
  overflow: hidden;
  box-shadow: inset 0px 0px 40px rgba(0, 0, 0, .8), 0px 8px 20px rgba(0, 0, 0, .6);
}

.card::after {
  content: '';
  position: absolute;
  top: -300px;
  right: -300px;
  bottom: -300px;
  left: -300px;
  background: conic-gradient(from 180deg at 50% 50%, #12001B -97.5deg, #000000 14.05deg, #040EFF 54.01deg, #8000FF 113.42deg, #00B6B6 185.62deg, #12001B 262.5deg, #000000 374.05deg);
filter: blur(60px) brightness(1.5);
  z-index: -1;
  animation: 30s move linear infinite;
}

h2 {
  margin: 0;
  padding: 0;
  font-size: 60px;
  letter-spacing: -1px;
  color: #fff;
  text-shadow: 0px 2px 4px rgba(0, 0, 0, .3);
}

span {
  font-size: 50px;
  font-weight: normal;
  display: block;
}

.card > div {
  background-color: rgba(0, 0, 0, 0.5);
  padding: 20px 40px;
  font-size: 32px;
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  color: #fff;
}

@keyframes move {
  from {
    transform: rotate(180deg);
  }
  to {
    transform: rotate(540deg);
  }
}

JavaScript

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