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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>CSS font-feature-settings Slashed Zero</title>
  <style>
    body {
      font-family: system-ui, sans-serif;
      padding: 1.5rem;
      line-height: 1.6;
    }

    code {
      font-family: ui-monospace, "Cascadia Code", monospace;
      font-size: 1.05rem;
      background: #1e293b;
      color: #e2e8f0;
      padding: 0.75rem 1rem;
      border-radius: 0.5rem;
      display: inline-block;
    }

    .slashed {
      font-feature-settings: "zero" 1;
    }
  </style>
</head>
<body>
  <h1>Slashed Zero</h1>
  <p>Default:</p>
  <code>O0O0 1010</code>
  <p>With zero feature:</p>
  <code class="slashed">O0O0 1010</code>
</body>
</html>

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CSS font-feature-settings Property - Slashed Zero