纯css多个正方形折叠旋转动画效果-html代码-BFW代码库

代码语言：html

所属分类：动画

代码描述：纯css多个正方形折叠旋转动画效果

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>
@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@500&display=swap");
:root {
  --color: darkslategray;
  --color-alt: whitesmoke;
  --color-focus: dodgerblue;
}

.dark-mode {
  --color: white;
  --color-alt: black;
  --color-focus: yellow;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  display: grid;
  place-items: center;
  overflow: hidden;
  background-color: var(--color-alt);
  font-family: "IBM Plex Mono", monospace;
}

.scene {
  --size: 50vmin;
  --duration: 5500ms;
  --bezier: calc(0.15 * var(--index) / 2);
  display: -webkit-box;
  display: flex;
  -webkit-box-align: center;
          align-items: center;
  -webkit-box-pack: center;
          justify-content: center;
  position: relative;
  width: var(--size);
  height: var(--size);
  -webkit-animation: scene calc(var(--duration) * 2) steps(1, end) infinite;
          animation: scene calc(var(--duration) * 2) steps(1, end) infinite;
}

.square {
  position: absolute;
  z-index: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  border: 6px dotted var(--color);
  -webkit-transition: opacity 500ms ease-out;
  transition: opacity 500ms ease-out;
  -webkit-animation: square var(--duration) alternate infinite;
          animation: square var(--duration) alternate infinite;
  -webkit-animation-timing-function: cubic-bezier(calc(0.1 * var(--index)), calc(0.025 * var(--index)), calc(0.1 * var(--index)), 1);
          animation-timing-function: cubic-bezier(calc(0.1 * var(--index)), calc(0.025 * var(--index)), calc(0.1 * var(--index)), 1);
}
@media (min-width: 40em) {
  .square {
    border-width: 1vmin;
  }
}

@-webkit-keyframes scene {
  50%,
  100% {
    -webkit-transform: scaleX(-1);
            transform: scaleX(-1);
  }
}

@keyframes scene {
  50%,
  100% {
    -webkit-transform: scaleX(-1);
            transform: scaleX(-1);
  }
}
@-webkit-keyframes square {
  0% {
    -webkit-transform: translateY(15vh);
            transform: translateY(15vh);
  }
  10% {
    -webkit-transform: translateY(0) scale(1);
            transform: translateY(0) scale(1);
  }
  20% {
    -webkit-transform: rotate(90deg);
            transform: rotate(90deg);
  }
  30% {
    -webkit-transform: translateY(0) scale(0.5) rotate(45deg);
            transform: translateY(0) scale(0.5) rotate(45deg);
  }
  40% {
    -webkit-transform: translateY(0) scale(0.5);
            transform: translateY(0) scale(0.5);
  }
  50% {
    -webkit-transform: translate(0, -20vh) scale(0.5);
            transform: translate(0, -20vh) scale(0.5);
  }
  60% {
    -webkit-transform: translate(20vw, -20vh) scale(0.5) rotate(90deg);
            transform: translate(20vw, -20vh) scale(0.5) rotate(90deg);
  }
  70% {
    -webkit-transform: translate(-20vw, -20vh) scale(0.5) rotate(-90deg);
            transform: translate(-20vw, -20vh) scale(0.5) rotate(-90deg);
  }
  80% {
    -webkit-transform: translate(0, -30vh) scale(0.25);
            transform: translate(0, -30vh) scale(0.25);
  }
  90% {
    -webkit-transform: translate(0, -20vh) scale(0.5);
            transform: translate(0, -20vh) scale(0.5);
  }
  100% {
    -webkit-transform: translateY(-20vh) scale(0.25);
            transform: translateY(-20vh) scale(0.25);
  }
}
@keyframes square {
  0% {
    -webkit-transform: translateY(15vh);
            transform: translateY(15vh);
  }
  10% {
    -webkit-transform: translateY(0) scale(1);
            transform: translateY(0) scale(1);
  }
  20% {
    -webkit-transform: rotate(90deg);
            transform: rotate(90deg);
  }
  30% {
    -webkit-transform: translateY(0) scale(0.5) rotate(45deg);
            transform: translateY(0) scale(0.5) rotate(45deg);
  }
  40% {
    -webkit-transform: translateY(0) scale(0.5);
            transform: translateY(0) scale(0.5);
  }
  50% {
    -webkit-transform: translate(0, -20vh) scale(0.5);
            transform: translate(0, -20vh) scale(0.5);
  }
  60% {
    -webkit-transform: translate(20vw, -20vh) scale(0.5) rotate(90deg);
            transform: translate(20vw, -20vh) scale(0.5) rotate(90deg);
  }
  70% {
    -webkit-transform: translate(-20vw, -20vh) scale(0.5) rotate(-90deg);
            transform: translate(-20vw, -20vh) scale(0.5) rotate(-90deg);
  }
  80% {
    -webkit-transform: translate(0, -30vh) scale(0.25);
            transform: translate(0, -30vh) scale(0.25);
  }
  90% {
    -webkit-transform: translate(0, -20vh) scale(0.5);
            transf.........完整代码请登录后点击上方下载按钮下载查看