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 counter-increment by 2</title>
  <style>
    body {
      font-family: sans-serif;
      padding: 1.5rem;
      line-height: 1.6;
    }

    .even-steps {
      list-style: none;
      counter-reset: even;
      padding-left: 0;
    }

    .even-steps li {
      counter-increment: even 2;
      margin-bottom: 0.5rem;
    }

    .even-steps li::before {
      content: "Step " counter(even) ": ";
      font-weight: 600;
      color: #7c3aed;
    }
  </style>
</head>
<body>
  <h1>Increment by 2</h1>
  <ul class="even-steps">
    <li>First task</li>
    <li>Second task</li>
    <li>Third task</li>
  </ul>
</body>
</html>

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CSS counter-increment Property - Increment by 2