chromium/third_party/blink/web_tests/fast/reflections/reflection-direction.html

<html>
<body style="white-space:nowrap; overflow: hidden;">
<div style="display:inline-block">
<img src="resources/kate.png" style="-webkit-box-reflect:right 1px"><br>
<img src="resources/kate.png" style="-webkit-box-reflect:left 1px;margin-left:336px"><br>
</div>
<div style="display:inline-block">
<img src="resources/kate.png" style="-webkit-box-reflect:above 1px;margin-top:297px">
<img src="resources/kate.png" style="-webkit-box-reflect:below 1px;margin-bottom:297px">
</div>