HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <title>mask-mode: alpha</title>
  <style>
    body {
      font-family: Arial, sans-serif;
      margin: 16px;
      color: #0f172a;
    }

    p {
      margin: 0 0 12px;
      max-width: 40rem;
      line-height: 1.5;
    }

    div {
    width: 220px;
    height: 140px;
    background: linear-gradient(135deg, #6366f1, #ec4899);
    -webkit-mask-image: linear-gradient(to right, #000, #008000, #fff);
    mask-image: linear-gradient(to right, #000, #008000, #fff);
      mask-mode: alpha;
    }
  </style>
</head>
<body>
  <p>Opaque black, green, and white all show because <strong>alpha</strong> ignores color.</p>
  <div></div>
</body>
</html>

Lines: 0 | Characters: 0

Live Preview Auto-refresh on Run

CSS mask-mode Property — alpha