HTML Code

<!DOCTYPE html>

<html lang="en">

<head>

  <title>CSS overscroll-behavior-block auto Example</title>

  <style>

    body {

      font-family: sans-serif;

      padding: 2rem;

      min-height: 150vh;

      background: #f8fafc;

    }

    .panel {

      width: 300px;

      height: 160px;

      overflow: auto;

      border: 1px solid #cbd5e1;

      border-radius: 0.5rem;

      background: #fff;

      overscroll-behavior-block: auto;

    }

    .panel-body {

      padding: 1rem;

    }

    .panel-body p {

      margin: 0 0 0.75rem;

      line-height: 1.55;

      color: #334155;

    }

    .hint {

      margin-top: 1rem;

      font-size: 0.9rem;

      color: #64748b;

    }

  </style>

</head>

<body>

  <h1>Default overscroll-behavior-block: auto</h1>

  <p class="hint">Scroll this panel to the top or bottom on the block axis, then continue scrolling. With <code>auto</code>, the browser may chain vertical scroll to the page behind.</p>

  <div class="panel">

    <div class="panel-body">

      <p>Section one — scroll inside this panel first.</p>

      <p>Section two — keep reading until you reach the bottom edge.</p>

      <p>Section three — at the edge, extra scroll may move the page.</p>

      <p>Section four — that is normal default browser behavior.</p>

      <p>Section five — use <code>contain</code> or <code>none</code> to stop block-axis chaining.</p>

    </div>

  </div>

</body>

</html>

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CSS overscroll-behavior-block Property - auto