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 Example</title>
  <style>
    body {
      font-family: system-ui, sans-serif;
      padding: 1.5rem;
      line-height: 1.6;
    }

    p {
      font-size: 20px;
      max-width: 36rem;
      color: #334155;
    }
  </style>
</head>
<body>
  <h1>Paragraph with Custom Font Size</h1>
  <p>This paragraph has a font size of 20 pixels.</p>
</body>
</html>

Lines: 0 | Characters: 0

Live Preview Auto-refresh on Run

CSS font-size Property - 20 Pixels