折叠盒子效果折叠盒子00000000000000000000000000000000000000000000000000

<!DOCTYPE html>
<html lang="en">
 
<head>
  <meta charset="utf-8">
  <title>Webpack Sample Project</title>
</head>
<style>
  #div {
    width: 300px;
    height: 150px;
    background: linear-gradient(225deg, transparent 32px, pink 0);
    position: relative;
    border-radius: 0.5em;
  }
 
  #div::after {
    content: "";
    position: absolute;
    right: 0px;
    top: 0px;
    background: linear-gradient(-135deg, transparent 50%, pink 0);
    width: 45px;
    height: 45px;
    border-bottom-left-radius: 4px;
    box-shadow: -0.2em 0.2em 0.2em #7a3a44;
  }
</style>
 
<body>
  <div id="div"></div>
</body>

效果图