HTML Code
<!DOCTYPE html>

<html lang="en">

<head>

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

  <style>

    body {

      font-family: sans-serif;

      margin: 0;

      min-height: 150vh;

      background: #e2e8f0;

    }

    .page-content {

      padding: 2rem;

      max-width: 40rem;

    }

    .page-content p {

      line-height: 1.6;

      color: #334155;

    }

    .drawer {

      position: fixed;

      top: 0;

      right: 0;

      width: 280px;

      height: 100vh;

      background: #fff;

      border-left: 1px solid #cbd5e1;

      box-shadow: -4px 0 24px rgba(15, 23, 42, 0.12);

      display: flex;

      flex-direction: column;

    }

    .drawer-header {

      padding: 1rem;

      font-weight: 700;

      border-bottom: 1px solid #e2e8f0;

      background: #f8fafc;

    }

    .drawer-body {

      flex: 1;

      overflow: auto;

      overscroll-behavior-block: contain;

      padding: 1rem;

    }

    .drawer-body p {

      margin: 0 0 0.85rem;

      line-height: 1.55;

      color: #475569;

      font-size: 0.95rem;

    }

  </style>

</head>

<body>

  <div class="page-content">

    <h1>Page with Fixed Drawer</h1>

    <p>This page is tall so you can scroll the document behind the drawer. Scroll the drawer body to its top or bottom on the block axis and keep scrolling — the page should stay put thanks to <code>overscroll-behavior-block: contain</code>.</p>

    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Praesent non nulla ut nunc fermentum dapibus.</p>

    <p>Maecenas et ligula sit amet neque consequat aliquet. Nullam varius eros at eros efficitur.</p>

    <p>Scroll the main page and the drawer independently to compare block-axis behavior at scroll boundaries.</p>

  </div>

  <aside class="drawer" aria-label="Settings drawer">

    <div class="drawer-header">Settings</div>

    <div class="drawer-body">

      <p><strong>Profile</strong> — Update your display name and avatar.</p>

      <p><strong>Notifications</strong> — Choose email and push alerts.</p>

      <p><strong>Privacy</strong> — Manage visibility and data sharing.</p>

      <p><strong>Security</strong> — Enable two-factor authentication.</p>

      <p><strong>Billing</strong> — View invoices and payment methods.</p>

      <p><strong>Integrations</strong> — Connect third-party apps.</p>

      <p><strong>Advanced</strong> — Export account data or delete account.</p>

      <p><strong>Help</strong> — Browse docs and contact support.</p>

    </div>

  </aside>

</body>

</html>
Lines: 0 | Characters: 0
Live Preview Auto-refresh on Run
CSS overscroll-behavior-block Property - Modal Drawer
