text-underline-position-mixed-fonts.html

<!DOCTYPE html>
<body style="overflow:hidden">
<p>Test to make sure gigantic fonts that aren't inside the text decoration don't affect the position of
the line. The giant font is invisible (color:transparent) in this test.
</p>

<span style="text-decoration:underline;text-underline-position:under">This text should be underlined just under the descenders.</span> <span style="font-size:64px; vertical-align:-256px; color:transparent">Should not be underlined.</span>
</body>

chromium/third_party/blink/web_tests/fast/css3-text/css3-text-decoration/text-underline-position/text-underline-position-mixed-fonts.html