HTML Code

<!DOCTYPE html>
<html>
<head>
  <title>CSS max-block-size Comparison</title>
  <style>
    body {
      font-family: sans-serif;
      padding: 1.5rem;
      background: #f8fafc;
    }
    .row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1rem;
    }
    .box {
      padding: 0.75rem;
      border-radius: 0.5rem;
      font-size: 0.9rem;
    }
    .none {
      max-block-size: none;
      background: #f1f5f9;
    }
    .sm {
      max-block-size: 120px;
      overflow: auto;
      background: #bfdbfe;
    }
    .md {
      max-block-size: 240px;
      overflow: auto;
      background: #93c5fd;
    }
  </style>
</head>
<body>
  <h1>Compare max-block-size Values</h1>
  <div class="row">
    <div class="box none">
      <strong>none</strong>
      <p>Same long text grows freely with no maximum cap applied to the block axis.</p>
      <p>Second paragraph adds more height to the box.</p>
    </div>
    <div class="box sm">
      <strong>120px cap</strong>
      <p>Same long text is capped and scrolls inside a smaller area.</p>
      <p>Second paragraph adds more height to the box.</p>
    </div>
    <div class="box md">
      <strong>240px cap</strong>
      <p>Same long text shows more content before scrolling kicks in.</p>
      <p>Second paragraph adds more height to the box.</p>
    </div>
  </div>
</body>
</html>

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CSS max-block-size Property - Compare Limits