Bug 1918529 - fix some subpixel misalignment issues with gfx.webrender.svg-filter...
[gecko.git] / layout / reftests / margin-collapsing / block-negative-4b-dyn2.html
blob91adf56a9cacf0e43a1c7a9314a6aec72976b6d5
1 <!DOCTYPE html>
2 <html class="reftest-wait">
3 <head>
4 <style type="text/css">
5 html, body {
6 margin: 0; padding: 5px;
8 div {
9 height: 20px;
10 background-color: green;
12 #negative {
13 margin-top: 30px;
14 margin-bottom: -90px;
16 #positive {
17 margin-top: 0;
18 background-color: blue;
20 </style>
21 <script type="text/javascript">
22 function test() {
23 document.getElementById('positive').style.marginTop = '40px';
24 document.documentElement.removeAttribute('class');
26 document.addEventListener('MozReftestInvalidate', test);
27 </script>
28 </head>
29 <body>
30 <div id="negative"></div>
31 <div id="positive"></div>
32 </body>
33 </html>