background-with-sub-pixel-offset-positioning.html

<!DOCTYPE html>
<style>
#float {
    background: url('resources/bgimg1x50.png') 0% 0px no-repeat #FFF;
    height: 1px;
    width: 1.5px;
    position: relative;
    left: 25px;
    transform: scale(50);
}
#container {
    margin-left: 1.5px;
    overflow: hidden;
    width: 10px;
    height: 10px;
}
</style>
<div id="container">
    <div id="float"></div>
</div>

chromium/third_party/blink/web_tests/fast/backgrounds/background-with-sub-pixel-offset-positioning.html