nested-sub-pixel-composited-layers.html

<!DOCTYPE html>
<html>
<head>
<style>
.subPixelContainer {
    left: 10.5px;
    width: 100px;
    height: 100px;
    position: relative;
    transform: translateZ(0);
}
.subPixelContainer > div {
    position: absolute;
    width: 50.5px;
    right: 0px;
    height: 50px;
}
.overflowHidden {
    overflow: hidden;
}
.test {
    transform: translateZ(0);
    background-color: green;
}
.ref {
    background-color: red;
}
</style>
</head>
<body>
<div>This tests that sub-pixel offsets in nested composited layers are properly accumulated. You should see no red.</div>
<div class="subPixelContainer">
    <div class="ref"></div>
    <div class="test"></div>
</div>
<div class="subPixelContainer overflowHidden">
    <div class="ref"></div>
    <div class="test"></div>
</div>

chromium/third_party/blink/web_tests/fast/sub-pixel/nested-sub-pixel-composited-layers.html