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- <!DOCTYPE html>
- <html class="reftest-wait">
- <head>
- <style type="text/css">
- html, body {
- margin: 0; padding: 5px;
- }
- div {
- height: 20px;
- background-color: green;
- }
- #positive {
- margin-top: 30px;
- margin-bottom: 40px;
- }
- #negative {
- margin-top: 0;
- background-color: blue;
- }
- </style>
- <script type="text/javascript">
- function test() {
- document.getElementById('negative').style.marginTop = '-90px';
- document.documentElement.removeAttribute('class');
- }
- document.addEventListener('MozReftestInvalidate', test, false);
- </script>
- </head>
- <body>
- <div id="positive"></div>
- <div id="negative"></div>
- </body>
- </html>
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