HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>CSS font-size-adjust Compare Example</title>
  <style>
    body {
      font-family: system-ui, sans-serif;
      padding: 1.5rem;
      line-height: 1.6;
    }

    p {
      font-family: Georgia, "Times New Roman", serif;
      font-size: 1.25rem;
      margin: 0.75rem 0;
      max-width: 36rem;
      color: #334155;
    }

    .no-adjust {
      font-size-adjust: none;
    }

    .with-adjust {
      font-size-adjust: 0.52;
    }
  </style>
</head>
<body>
  <h1>none vs 0.52</h1>
  <p class="no-adjust">none: The quick brown fox jumps over the lazy dog.</p>
  <p class="with-adjust">0.52: The quick brown fox jumps over the lazy dog.</p>
</body>
</html>

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CSS font-size-adjust Property - none vs 0.52