div+css实现dna螺旋动画效果代码-html代码-BFW代码库

div+css实现dna螺旋动画效果代码

代码语言：html

所属分类：动画

代码描述：div+css实现dna螺旋动画效果代码

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html lang="en" >

<head>
  <meta charset="UTF-8">
  
  
  
<style>
:root {
  --color-primary: #00d9ff;
  --color-secondary: #ec1583;
  --color-tertiary: #deee75;
  --color-quaternary: #9375ee;
  --color-surface: #191919;
}

@property --rotate-y {
  syntax: "<angle>";
  inherits: true;
  initial-value: 0deg;
}
@property --rotate {
  syntax: "<angle>";
  inherits: true;
  initial-value: 45deg;
}
@property --gap {
  syntax: "<length>";
  inherits: true;
  initial-value: 0;
}
@-webkit-keyframes dna {
  from {
    --rotate-y: 0deg;
  }
  to {
    --rotate-y: 360deg;
  }
}
@keyframes dna {
  from {
    --rotate-y: 0deg;
  }
  to {
    --rotate-y: 360deg;
  }
}
@-webkit-keyframes rotate-container {
  from {
    --rotate: 42deg;
  }
  50% {
    --rotate: 142deg;
  }
  to {
    --rotate: 42deg;
  }
}
@keyframes rotate-container {
  from {
    --rotate: 42deg;
  }
  50% {
    --rotate: 142deg;
  }
  to {
    --rotate: 42deg;
  }
}
.container {
  filter: url(#blurFilter) contrast(1.5) brightness(1.5) saturate(0.6);
  position: absolute;
  transform: scale(0.8);
}

.dna {
  --width: 11rem;
  --count: 42;
  display: flex;
  flex-direction: column;
  z-index: 1111;
  perspective: 50rem;
  -webkit-animation: dna 2.5s linear infinite, rotate-container 20s ease-in-out infinite;
          animation: dna 2.5s linear infinite, rotate-container 20s ease-in-out infinite;
  transform-style: preserve-3d;
  rotate: var(--rotate);
  transform: rotateY(var(--rotate-y, 0deg));
}
@media (prefers-reduced-motion) {
  .dna {
    -webkit-animation: dna 2.5s linear infinite;
            animation: dna 2.5s linear infinite;
  }
}
.dna .item {
  display: flex;
  align-items: center;
  transform-style: preserve-3d;
  --a: calc(360deg / var(--count) * (var(--i)));
  transform: rotateY(var(--a));
}
.dna .item > div {
  width: var(--width);
  height: 0.381rem;
  background: white;
  background: conic-gradient(var(--color-primary), var(--color-secondary));
  transform-style: preserve-3d;
}
.dna .item > div:first-of-type, .dna .item > div:last-of-type {
  --thickness: 0.9rem;
  width: var(--thickness);
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