This is a testharness.js-based test.
PASS .grid 1
FAIL .grid 2 assert_equals: 
<div class="grid" style="-webkit-writing-mode: vertical-lr">
  <div id="baseline6" data-offset-x="18" class="firstRowFirstColumn alignSelfBaseline">ahem</div>
  <div id="baseline7" data-offset-x="18" class="firstRowSecondColumn alignSelfBaseline"><img src="../../fast/replaced/resources/1x1-blue.png" style="width: 50px;"></div>
  <div data-expected-width="50" data-offset-x="25" class="firstRowThirdColumn alignSelfCenter"><img src="../../fast/replaced/resources/1x1-blue.png" style="width: 50px; vertical-align: middle"></div>
  <div data-expected-width="50" data-offset-x="0" class="firstRowFourthColumn alignSelfBaseline"><img src="../../fast/replaced/resources/1x1-blue.png" style="width: 50px; vertical-align: middle"></div>
  <div data-expected-width="100" data-offset-x="0" class="firstRowFifthColumn" style="width: 100px;"></div>
</div>
offsetLeft expected 18 but got 17
PASS .grid 3
PASS .grid 4
PASS .grid 5
Harness: the test ran to completion.

