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 Body Example</title>
  <style>
    html {
      font-size: 100%;
    }

    body {
      font: 1rem/1.6 system-ui, sans-serif;
      padding: 1.5rem;
      color: #334155;
      max-width: 40rem;
    }

    h1 {
      font-size: 1.75rem;
      line-height: 1.25;
      margin-bottom: 0.75rem;
      color: #1e293b;
    }
  </style>
</head>
<body>
  <h1>Readable Body Text</h1>
  <p>
    This page uses font: 1rem/1.6 system-ui, sans-serif for comfortable reading. The rem unit scales with the root font size, and the 1.6 line-height gives paragraphs enough vertical space.
  </p>
  <p>
    Add a second paragraph to see how consistent line-height improves multi-paragraph articles.
  </p>
</body>
</html>

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CSS font Property - Readable Body Text