tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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content-visibility-074-ref.html (665B)

      1 <!doctype HTML>
      2 <html>
      3 <meta charset="utf8">
      4 <title>CSS Content Visibility: toggling auto with composited descedant (reference)</title>
      5 <link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
      6 <link rel="help" href="https://drafts.csswg.org/css-contain/#content-visibility">
      7 
      8 <style>
      9 #a { will-change: transform; }
     10 #b { height: 15000px; }
     11 #c {
     12  width: 800px;
     13  height: 600px;
     14 }
     15 #d {
     16  will-change: transform;
     17  top: 0px;
     18  width: 500px;
     19  height: 500px;
     20  background: green;
     21 }
     22 .contain {
     23  contain: layout style paint;
     24 }
     25 
     26 </style>
     27 
     28 <div id="a">
     29 </div>
     30 <div id="b">
     31  <div id="c" class=contain>
     32    <div id="d"></div>
     33    </div>
     34  </div>
     35 </div>