Example of CSS grid-auto-columns Property with auto and length values

Source Code: (back to article)

<!DOCTYPE html>
<html>
  <head>
    <title>Title of the document</title>
    <style>
      .box1 {
        grid-area: 1 / 1 / 2 / 2;
      }
      .box2 {
        grid-area: 1 / 2 / 2 / 3;
      }
      .box3 {
        grid-area: 1 / 3 / 2 / 4;
      }
      .box4 {
        grid-area: 2 / 1 / 3 / 2;
      }
      .box5 {
        grid-area: 2 / 2 / 3 / 3;
      }
      .box6 {
        grid-area: 2 / 3 / 3 / 4;
      }
      .black-box1 {
        grid-area: 1 / 1 / 2 / 2;
      }
      .black-box2 {
        grid-area: 1 / 2 / 2 / 3;
      }
      .black-box3 {
        grid-area: 1 / 3 / 2 / 4;
      }
      .black-box4 {
        grid-area: 2 / 1 / 3 / 2;
      }
      .black-box5 {
        grid-area: 2 / 2 / 3 / 3;
      }
      .black-box6 {
        grid-area: 2 / 3 / 3 / 4;
      }
      .auto-box1 {
        grid-area: 1 / 1 / 2 / 2;
      }
      .auto-box2 {
        grid-area: 1 / 2 / 2 / 3;
      }
      .auto-box3 {
        grid-area: 1 / 3 / 2 / 4;
      }
      .auto-box4 {
        grid-area: 2 / 1 / 3 / 2;
      }
      .auto-box5 {
        grid-area: 2 / 2 / 3 / 3;
      }
      .auto-box6 {
        grid-area: 2 / 3 / 3 / 4;
      }
      .grid-container {
        display: grid;
        grid-auto-columns: 50px;
        grid-gap: 10px;
        background-color: #555;
        padding: 10px;
      }
      .grid-container > div {
        background-color: #ccc;
        text-align: center;
        padding: 20px 0;
        font-size: 30px;
      }
      .black-container {
        display: grid;
        grid-auto-columns: 100px;
        grid-gap: 10px;
        background-color: #000;
        padding: 10px;
      }
      .black-container > div {
        background-color: #ccc;
        text-align: center;
        padding: 20px 0;
        font-size: 30px;
      }
      .auto-container {
        display: grid;
        grid-auto-columns: auto;
        grid-gap: 10px;
        background-color: #ccc;
        padding: 10px;
      }
      .auto-container > div {
        background-color: #999;
        text-align: center;
        padding: 20px 0;
        font-size: 30px;
      }
    </style>
  </head>
  <body>
    <h2>Grid-auto-columns property example</h2>
    <h3>50 pixels</h3>
    <div class="grid-container">
      <div class="box1">1</div>
      <div class="box2">2</div>
      <div class="box3">3</div>
      <div class="box4">4</div>
      <div class="box5">5</div>
      <div class="box6">6</div>
    </div>
    <h3>100 pixels</h3>
    <div class="black-container">
      <div class="black-box1">1</div>
      <div class="black-box2">2</div>
      <div class="black-box3">3</div>
      <div class="black-box4">4</div>
      <div class="black-box5">5</div>
      <div class="black-box6">6</div>
    </div>
    <h3>auto</h3>
    <div class="auto-container">
      <div class="auto-box1">1</div>
      <div class="auto-box2">2</div>
      <div class="auto-box3">3</div>
      <div class="auto-box4">4</div>
      <div class="auto-box5">5</div>
      <div class="auto-box6">6</div>
    </div>
  </body>
</html>