chromium/third_party/blink/web_tests/external/wpt/css/css-text-decor/text-shadow/basic-negcoord-ref.html

<!DOCTYPE HTML>

<div style="position: absolute; top: 20px; left: 20px; color: green; z-index: 0;">Hello</div>
<div style="position: absolute; top: 24px; left: 24px; color: black; z-index: 1;">Hello</div>