纯css实现飞舞的纸张动画效果-html代码-BFW代码库

代码语言：html

所属分类：动画

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">

    <title> - ➰📃 Paper Pirouette | 3D CSS-only flying page animation tutorial | @keyframers 2.18.0</title>
 <link rel="stylesheet" href="http://repo.bfw.wiki/bfwrepo/css/normalize.min.css" />
    <style>
        *, *:before, *:after {
            box-sizing: border-box;
            position: relative;
        }

        * {
            -webkit-transform-style: preserve-3d;
            transform-style: preserve-3d;
        }

:root {
            --duration: 3.2s;
            --stagger: .65s;
            --easing: cubic-bezier(.36,.07,.25,1);
            --offscreen: 130vmax;
            --color-bg: #EF735A;
            --color-blue: #384969;
            --color-shadow: #211842;
        }

        html, body {
            margin: 0;
            padding: 0;
            height: 100%;
            width: 100%;
            overflow: hidden;
        }

        body {
            display: flex;
            justify-content: center;
            align-items: center;
            background: var(--color-bg);
        }

        #app {
            height: 70vmin;
            width: 40vmin;
            display: flex;
            justify-content: center;
            align-items: center;
            -webkit-transform: translateX(25vw) rotateX(-20deg) rotateY(-55deg);
            transform: translateX(25vw) rotateX(-20deg) rotateY(-55deg);
            background: var(--color-blue);
            border-radius: 2vmin;
            -webkit-perspective: 10000px;
            perspective: 10000px;
        }
        #app:before {
            border: 10vmin solid white;
            border-left-width: 2vmin;
            border-right-width: 2vmin;
            border-radius: inherit;
            content: '';
            position: absolute;
            height: 100%;
            width: 100%;
            top: 0;
            left: 0;
            border: 10vmin solid white;
            border-left-width: 2vmin;
            border-right-width: 2vmin;
            background: var(--color-blue);
        }
        #app > .papers, #app:before {
            -webkit-transform: translateZ(3vmin);
            transform: translateZ(3vmin);
        }
        #app:after {
            content: '';
            position: absolute;
            height: 100%;
            width: 100%;
            top: 0;
            left: 0;
            background: inherit;
            border-radius: inherit;
            -webkit-transform: translateZ(1.5vmin);
            transform: translateZ(1.5vmin);
        }
        #app > .shadow {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            -webkit-transform-origin: bottom center;
            transform-origin: bottom center;
            -webkit-transform: rotateX(90deg);
            transform: rotateX(90deg);
            background: var(--color-shadow);
            border-radius: inherit;
        }

        .paper-shadow {
            background: var(--color-shadow);
            height: 50%;
            width: 100%;
            position: absolute;
            top: calc(100% + 3vmin);
            left: 0;
            -webkit-transform-origin: top center;
            transform-origin: top center;
            -webkit-animation: shadow-in var(--duration) var(--easing) infinite;
            animation: shadow-in var(--duration) var(--easing) infinite;
            -webkit-animation-delay: calc(var(--i) * var(--stagger));
            animation-delay: calc(var(--i) * var(--stagger));
            -webkit-animation-fill-mode: both;
            animation-fill-mode: both;
        }
@-webkit-keyframes shadow-in {
            0%,5% {
                -webkit-transform: scale(0.8, 1) translateY(var(--offscreen));
                transform: scale(0.8, 1) translateY(var(--offscreen));
            }
            100% {
                -webkit-transform: scale(0.8, 0);
                transform: scale(0.8, 0);
            }
        }
@keyframes shadow-in {
            0%,5% {
                -webkit-transform: scale(0.8, 1) translateY(var(--offscreen));
                transform: scale(0.8, 1) translateY(var(--offscreen));
            }
            100% {
                -webkit-transform: scale(0.8, 0);
                transform: scale(0.8, 0);
            }
        }
        .papers {
            width: 30vmin;
            height: 40vmin;
            background: white;
        }

        .paper {
            --segments: 5;
            --segment: calc(100% * 1 / var(--segments));
            position: absolute;
            top: 0;
            left: 0;
            height: 100%;
            width: 100%;
            -webkit-animation: fly-in var(--duration) var(--easing) infinite;
            animation: fly-in var(--duration) var(--easing) infinite;
            -webkit-animation-delay: calc( (var(--i) * var(--stagger)) );
            animation-delay: calc( (var(--i) * var(--stagger)) );
        }
@-webkit-keyframes fly-in {
            0%, 2% {
                -webkit-transform: translateZ(var(--offscreen)) translateY(80%) rotateX(30deg);
                transform: translateZ(var(--offscreen)) translateY(80%) rotateX(30deg);
            }
            80%, 100% {
                -webkit-transform: translateZ(0px) translateY(0%) rotateX(0deg);
                transform: translateZ(0px) translateY(0%) rotateX(0deg);
            }
        }
@keyframes fly-in {
            0%, 2% {
                -webkit-transform: translateZ(var(--offscreen)) translateY(80%) rotateX(30deg);
                transform: translateZ(var(--offscreen)) translateY(80%) rotateX(30deg);
            }
            80%, 100% {
                -webkit-transform: translateZ(0px) translateY(0%) rotateX(0deg);
                transform: translateZ(0px) translateY(0%) rotateX(0deg);
            }
        }
        .paper > .segment {
            height: var(--segment);
        }

        .segment {
            --rotate: 20deg;
            height: 100%;
            -webkit-transform-origin: top center;
            transform-origin: top center;
            background: white;
            border: 1px solid rgba(0, 0, 0, 0.2);
            border-top: none;
            border-bottom: none;
  .........完整代码请登录后点击上方下载按钮下载查看