鋸齒狀背景圖片

時間 2021-04-30

標籤 html 前端 app flex url spa code orm htm 欄目 HTML 简体版

原文原文鏈接

代碼來自頭條號"前端小智", 侵權刪
html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>鋸齒狀</title>
  <style>
    *{
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    section{
      position: relative;
      width: 100%;
      height: 100vh;
      background: url("https://gimg2.baidu.com/image_search/src=http%3A%2F%2Fyouimg1.c-ctrip.com%2Ftarget%2Ftg%2F035%2F063%2F726%2F3ea4031f045945e1843ae5156749d64c.jpg&refer=http%3A%2F%2Fyouimg1.c-ctrip.com&app=2002&size=f9999,10000&q=a80&n=0&g=0n&fmt=jpeg?sec=1622294525&t=8b61f04b0c64b3f14a66f1fbfa4c7aa4") no-repeat; /*url*/
      background-size: cover;
      display: flex;
      justify-content: center;
      align-items: center;
      border-left: 50px #fff solid;
      border-right: 50px #fff solid;
    }
    h2{
      color: #fff;
      font-size: 6em;
      text-align: center;
    }
    section::before{
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 20px;
      display: block;
      background: linear-gradient(-45deg, transparent 33.33%, #fff 33.33%, #fff 66.66%, transparent 66.66%), 
                  linear-gradient(45deg, transparent 33.33%, #fff 33.33%, #fff 66.66%, transparent 66.66%);
                  /*-45 是從左下角到右上角  45是右下角到左上角 經過漸變  透明+顏色 將矩形切成三角形
                  heigh是整個矩形的高 baccground-size能夠改變三角的大小
                  建議查詢一下漸變本身試試*/

      background-size: 30px 60px;
    }
    section::after{
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 20px;
      display: block;
      background: linear-gradient(-45deg, transparent 33.33%, #fff 33.33%, #fff 66.66%, transparent 66.66%), 
                  linear-gradient(45deg, transparent 33.33%, #fff 33.33%, #fff 66.66%, transparent 66.66%);
      background-size: 30px 60px;
      transform: rotate(180deg);
    }
  </style>
</head>
<body>
  <section>
    <h2>zig zag border</h2>
  </section>
</body>
</html>

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