<!DOCTYPE HTML> <html reftest-async-scroll reftest-displayport-x="0" reftest-displayport-y="0" reftest-displayport-w="800" reftest-displayport-h="2000" reftest-async-scroll-x="0" reftest-async-scroll-y="1800"> <!-- This is a test where we set the async-scroll position so that it extends outside the displayport, but also have some fixed-position elements in the mix. In particular, the purple element is below (in z-order) the main scrolling content and should not be made visible while checkerboarding; the checkerboarding code should cover it up with the appropriate background color. --> <body style="background-color: green; height: 5000px; overflow:hidden"> <div style="position:fixed; left: 0px; top: 0px; width: 100px; height: 500px; background-color: purple; z-index: -1"></div> <div style="position:absolute; left: 0px; top: 500px; background-color: yellow; width: 100px; height: 4500px"></div> <div style="position:fixed; left: 10px; top: 10px; width: 10px; height: 10px; background-color: blue"></div> </body>