HTML Code

<!DOCTYPE html>
<html>
<head>
  <title>CSS color-index Hero Example</title>
  <style>
    body {
      font-family: system-ui, sans-serif;
      margin: 0;
    }

    .hero {
      padding: 2rem;
      background: #2563eb;
      color: #fff;
      text-align: center;
    }

    @media (color-index) and (max-color-index: 256) {
      .hero {
        background: #334155;
        background-image: none;
      }
    }

    @media (min-color-index: 4096) {
      .hero {
        background: linear-gradient(135deg, #1e3a8a, #2563eb);
      }
    }
  </style>
</head>
<body>
  <section class="hero">
    <h1>Hero Section</h1>
    <p>Gradient on large palettes; solid on indexed small palettes.</p>
  </section>
</body>
</html>

Lines: 0 | Characters: 0

Live Preview Auto-refresh on Run

CSS color-index - Hero Gradient Gating