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chromium/third_party/blink/web_tests/paint/invalidation/transform/subpixel-offset-scaled-transform-expected.html 

<!DOCTYPE html>
<style>
.square { width: 40px; height: 40px; background: blue; position: relative; }
</style>
<div class="square"></div>
<div class="square" style="top: 10px; left: 1px"></div>