css/css-backgrounds/reference/background-image-large-with-auto-ref.html

<!DOCTYPE html>
<html>
<head>
  <title>CSS Background Test Reference</title>
  <link rel="author" title="schenney" href="mailto:schenney@chromium.org">
  <style>
    .wide-div {
      background-image: url(../support/green-1000x10.png);
      background-repeat: no-repeat;
      background-size: 10000px 100px;
      width: 1000px;
      height: 100px;
      border: 1px solid black;
    }

    .high-div {
      background-image: url(../support/green-10x1000.png);
      background-repeat: no-repeat;
      background-size: 100px 10000px;
      width: 100px;
      height: 1000px;
      border: 1px solid black;
    }
  </style>
</head>

<body>
  <div class='wide-div'></div>
  <div class='high-div'></div>
</body>
</html>