css-practice/nested_grid.html at master · kuvic16/css-practice · GitHub

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<!DOCTYPE html>
<html>
  <head>
    <title>CSS Grid</title>
    <style>
      body {
        margin-top: 40px;
      }

      .container {
        display: grid;
        grid-template-columns: repeat(4, 100px);
        grid-gap: 10px;
      }

      .box {
        background-color: #444;
        color: #fff;
        border-radius: 2px;
        padding: 10px;
      }

      .a {
        grid-column: 3 / span 2;
        grid-row: 3;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        grid-gap: 10px;
      }

      .a > .box {
        background: blue;
      }

      .b {
        grid-column: 3/5;
      }

    </style>
  </head>
  <body>
    <section class="container">
      <div class="box a">
        <div class="box">a1</div>
        <div class="box">a2</div>
        <div class="box">a3</div>
        <div class="box">a4</div>
      </div>
      <div class="box b">B</div>
      <div class="box c">C</div>
      <div class="box d">D</div>
      <div class="box e">E</div>
      <div class="box f">F</div>
      <div class="box g">G</div>
      <div class="box h">H</div>
    </section>
  </body>
</html>