css 三角形

2021-04-05 81 阅读1分钟

border 实际上是由三角形组成

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <title>index</title>
    <style>
      div {
        width: 0;
        height: 0;
        border-width: 50px;
        border-style: solid;
        border-color: red transparent blue pink;
      }
    </style>
  </head>
  <body>
    <div></div>
  </body>
</html>