css实现信封墙拆信封效果代码-html代码-BFW代码库

代码语言：html

代码描述：css实现信封墙拆信封效果代码

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>
@charset "UTF-8";
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  position: relative;
}

*::before,
*::after {
  content: "";
  display: block;
  position: absolute;
}

h1 {
  font-size: 1.25rem;
  text-align: center;
  padding: 6vh;
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
}

body {
  background: #f3e0d4;
}
body .wrapper {
  width: 100%;
  margin: auto;
  padding: 8%;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(6.5rem, 1fr));
  grid-auto-rows: 3rem;
  grid-row-gap: 3rem;
}

.envelope {
  list-style: none;
  width: 6rem;
  height: 4rem;
  background: blue;
}
.envelope::before {
  width: 6rem;
  height: 2.4rem;
  top: 0;
  left: 0;
  transform-origin: 0% 0%;
  transition: all 0.5s ease-out;
}

.card {
  width: 5rem;
  height: 1rem;
  left: 0.5rem;
  bottom: 3rem;
}
.card::after {
  width: 3rem;
  height: 1.6rem;
  background: #fffefc;
  bottom: 1rem;
  left: 1rem;
  transition: all 3s;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: 0.2em;
  font-size: 1.25rem;
}
.card::before {
  height: 0rem;
  width: 6rem;
  left: -0.5rem;
  bottom: -2rem;
  z-index: 2;
}

details[open] .envelope::before {
  transform: rotateX(180deg);
}
details[open] .card::after {
  animation: open 1.5s ease-in-out;
}
details[open] .card::before {
  animation: disappear .8s ease-in-out;
}

details:nth-of-type(6n+1) .envelope {
  background: linear-gradient(transparent 1%, #6a8e53 2%, transparent 5%), linear-gradient(-147deg, #769e5c 50%, transparent 40%) no-repeat 0 0/3rem 2rem, linear-gradient(147deg, #769e5c 50%, transparent 40%) no-repeat 3rem 0/3rem 2rem, linear-gradient(-33deg, #91b27b 67%, #769e5c 68% 69%, transparent 69%) no-repeat 0 2rem/3rem 4rem, linear-gradient(33deg, #91b27b 67%, #769e5c 68% 69%, transparent 69%) no-repeat 3rem 2rem/3rem 4rem, linear-gradient(-33deg, #91b27b 50%, transparent 52%), linear-gradient(33deg, #91b27b 50%, transparent 52%);
}
details:nth-of-type(6n+1) .envelope::before {
  background: linear-gradient(33deg, transparent 50%, #769e5c 50%) 0 0/3rem 2.4rem, linear-gradient(-33deg, transparent 50%, #769e5c 50%) 3rem 0/3rem 2.4rem;
  background-repeat: no-repeat;
}
details:nth-of-type(6n+1) .card {
  background: linear-gradient(33deg, #91b27b 38%, transparent 39%), linear-gradient(-33deg, transparent 38%, #fffefc 39%);
}
details:nth-of-type(6n+1) .card::before {
  background: linear-gradient(-33deg, #91b27b 67%, #769e5c 68% 69%, transparent 69%) no-repeat 0 2rem/3rem 4rem, linear-gradient(33deg, #91b27b 67%, #769e5c 68% 69%, transparent 69%) no-repeat 3rem 2rem/3rem 4rem, linear-gradient(-33deg, #91b27b 50%, transparent 52%), linear-gradient(33deg, #91b27b 50%, transparent 52%);
}

details:nth-of-type(6n+2) .envelope {
  background: linear-gradient(transparent 1%, #016c82 2%, transparent 5%), linear-gradient(-147deg, #01819b 50%, transparent 40%) no-repeat 0 0/3rem 2rem, linear-gradient(147deg, #01819b 50%, transparent 40%) no-repeat 3rem 0/3rem 2rem, linear-gradient(-33deg, #01ABCE 67%, #01819b 68% 69%, transparent 69%) no-repeat 0 2rem/3rem 4rem, linear-gradient(33deg, #01ABCE 67%, #01819b 68% 69%, transparent 69%) no-repeat 3rem 2rem/3rem 4rem, linear-gradient(-33deg, #01ABCE 50%, transparent 52%), linear-gradient(33deg, #01ABCE 50%, transparent 52%);
}
details:nth-of-type(6n+2) .envelope::before {
  background: linear-gradient(33deg, transparent 50%, #01819b 50%) 0 0/3rem 2.4rem, linear-gradient(-33deg, transparent 50%, #01819b 50%) 3rem 0/3rem 2.4rem;
  background-repeat: no-repeat;
}
details:nth-of-type(6n+2) .card {
  background: linear-gradient(33deg, #01ABCE 38%, transparent 39%), linear-gradient(-33deg, transparent 38%, #fffefc 39%);
}
details:nth-of-type(6n+2) .card::before {
  background: linear-gradient(-33deg, #01ABCE 67%, #01819b 68% 69%, transparent 69%) no-repeat 0 2rem/3rem 4rem, linear-gradient(33deg, #01ABCE 67%, #01819b 68% 69%, transparent 69%) no-repeat 3rem 2rem/3rem 4rem, linear-gradient(-33deg, #01ABCE 50%, transparent 52%), linear-gradient(33deg, #01ABCE 50%, transparent 52%);
}

details:nth-of-type(6n+3) .envelope {
  background: linear-gradient(transparent 1%, #bb9200 2%, transparent 5%), linear-gradient(-147deg, #d4a700 50%, transparent 40%) no-repeat 0 0/3rem 2rem, linear-gradient(147deg, #d4a700 50%, transparent 40%) no-repeat 3rem 0/3rem 2rem, linear-gradient(-33deg, #FFCA08 67%, #d4a700 68% 69%, transparent 69%) no-repeat 0 2rem/3rem 4rem, linear-gradient(33deg, #FFCA08 67%, #d4a700 68% 69%, transparent 69%) no-repeat 3rem 2rem/3rem 4rem, linear-gradient(-33deg, #FFCA08 50%, transparent 52%), linear-gradient(33deg, #FFCA08 50%, transparent 52%);
}
details:nth-of-type(6n+3) .envelope::before {
  background: linear-gradient(33deg, transparent 50%, #d4a700 50%) 0 0/3rem 2.4rem, linear-gradient(-33deg, transparent 50%, #d4a700 50%) 3rem 0/3rem 2.4rem;
  background-repeat: no-repeat;
}
details:nth-of-type(6n+3) .card {
  background: linear-gradient(33deg, #FFCA08 38%, transparent 39%), linear-gradient(-33deg, transparent 38%, #fffefc 39%);
}
details:nth-of-type(6n+3) .card::before {
  background: linear-gradient(-33deg, #FFCA08 67%, #d4a700 68% 69%, transparent 69%) no-repeat 0 2rem/3rem 4rem, linear-gradient(33deg, #FFCA08 67%, #d4a700 68% 69%, transparent 69%) no-repeat 3rem 2rem/3rem 4rem, linear-gradient(-33deg, #FFCA08 50%, transparent 52%), linear-gradient(33deg, #FFCA08 50%, transparent 52%);
}

details:nth-of-type(6n+4) .envelope {
  background: linear-gradient(transparent 1%, #c16c07 2%, transparent 5%), linear-gradient(-147deg, #d97a08 50%, transparent 40%) no-repeat 0 0/3rem 2rem, linear-gradient(147deg, #d97a08 50%, transparent 40%) no-repeat 3rem 0/3rem 2rem, linear-gradient(-33deg, #F7941D 67%, #d97a08 68% 69%, transparent 69%) no-repeat 0 2rem/3rem 4rem, linear-gradient(33deg, #F7941D 67%, #d97a08 68% 69%, transparent 69%) no-repeat 3rem 2rem/3rem 4rem, linear-gradient(-33deg, #F7941D 50%, transparent 52%), linear-gradient(33deg, #F7941D 50%, transparent 52%);
}
details:nth-of-type(6n+4) .envelope::before {
  background: linear-gradient(33deg, transparent 50%, #d97a08 50%) 0 0/3rem 2.4rem, linear-gradient(-33deg, transparent 50%, #d97a08 50%) 3rem 0/3rem 2.4.........完整代码请登录后点击上方下载按钮下载查看