tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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fixed-position-child-with-will-change-ancestor.tentative.html (675B)

      1 <!DOCTYPE html>
      2 <html>
      3 <title>Test that a fixed positioned child of a dialog is aligned to the viewport</title>
      4 <head>
      5 <link rel="match" href="fixed-position-child-with-fixed-position-cb-ref.html">
      6 <link rel="help" href="https://fullscreen.spec.whatwg.org/#new-stacking-layer">
      7 <style>
      8 ::backdrop {
      9    display: none;
     10 }
     11 #dialog {
     12    outline: none;
     13 }
     14 </style>
     15 </head>
     16 <body>
     17 <div style="will-change: transform">
     18    <dialog id="dialog">
     19        Dialog should be centered.
     20        <div style="position: fixed; top: 0px; left: 0px">This fixed positioned element is aligned to viewport top-left.</div>
     21    </dialog>
     22 </div>
     23 <script>
     24 dialog.showModal();
     25 </script>
     26 </body>
     27 </html>