HTML Code

<!DOCTYPE html>

<html>

<head>

  <title>CSS background-origin Comparison</title>

  <style>

    body {

      font-family: sans-serif;

      padding: 1.25rem;

      background: #f8fafc;

    }

    .grid {

      display: grid;

      grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));

      gap: 1rem;

      max-width: 48rem;

    }

    .tile {

      height: 150px;

      padding: 1rem;

      border: 10px solid #475569;

      border-radius: 0.75rem;

      background-image: radial-gradient(circle, #34d399 0 30px, transparent 31px);

      background-repeat: no-repeat;

      background-size: 64px 64px;

      background-position: top left;

    }

    .border-box { background-origin: border-box; }

    .padding-box { background-origin: padding-box; }

    .content-box { background-origin: content-box; }

    h2 {

      margin: 0 0 0.35rem;

      font-size: 0.95rem;

      color: #0f172a;

    }

  </style>

</head>

<body>

  <h1>background-origin values</h1>

  <div class="grid">

    <div>

      <h2>border-box</h2>

      <div class="tile border-box"></div>

    </div>

    <div>

      <h2>padding-box</h2>

      <div class="tile padding-box"></div>

    </div>

    <div>

      <h2>content-box</h2>

      <div class="tile content-box"></div>

    </div>

  </div>

</body>

</html>

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CSS background-origin Property - Value Comparison