HTML Code

<!DOCTYPE html>
<html>
<head>
  <title>CSS max-width 90vw</title>
  <style>
    body { font-family: sans-serif; padding: 1.5rem; background: #f8fafc; margin: 0; }
    .card {
      max-width: 90vw;
      margin: 0 auto;
      padding: 1.5rem;
      background: #fef3c7;
      border: 1px solid #fcd34d;
      border-radius: 0.75rem;
    }
  </style>
</head>
<body>
  <h1>Viewport Cap: 90vw</h1>
  <div class="card">
    <p>This card never grows wider than 90% of the viewport width.</p>
    <p>Resize the browser window to see the cap change.</p>
  </div>
</body>
</html>

Lines: 0 | Characters: 0

Live Preview Auto-refresh on Run

CSS max-width Property - 90vw Viewport Cap