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 border-spacing Comparison</title>
  <style>
    body {
      font-family: sans-serif;
      padding: 1.5rem;
      background: #f8fafc;
    }

    .label {
      margin: 0 0 0.35rem;
      font-size: 0.875rem;
      color: #64748b;
      font-weight: 600;
    }

    .no-gap {
      border-collapse: separate;
      border-spacing: 0;
      width: 100%;
      max-width: 16rem;
      margin-bottom: 1rem;
    }

    .with-gap {
      border-collapse: separate;
      border-spacing: 16px;
      width: 100%;
      max-width: 16rem;
    }

    td {
      border: 1px solid #64748b;
      padding: 6px;
      text-align: center;
    }
  </style>
</head>
<body>
  <h1>Border Spacing Comparison</h1>
  <p class="label">border-spacing: 0</p>
  <table class="no-gap">
    <tr>
      <td>A</td>
      <td>B</td>
    </tr>
    <tr>
      <td>C</td>
      <td>D</td>
    </tr>
  </table>
  <p class="label">border-spacing: 16px</p>
  <table class="with-gap">
    <tr>
      <td>A</td>
      <td>B</td>
    </tr>
    <tr>
      <td>C</td>
      <td>D</td>
    </tr>
  </table>
</body>
</html>

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CSS border-spacing Property - 0 vs 16px