Switch it from float:right to text-align:right seems to make it work, will try doing that.

The following revision refers to this bug:
  https://chromium.googlesource.com/external/github.com/luci/luci-go.git/+/1c9bfc6dd8d53a83332efae04b25611bb560660f

commit 1c9bfc6dd8d53a83332efae04b25611bb560660f
Author: hinoka <hinoka@google.com>
Date: Fri Jun 02 19:28:18 2017

Milo UI tweaks

* Changed "interesting" to "non-green only"
* Added alternating colors for step links
* Constrained properties value cell width to 250px
* Reordered step title so right side would layout first
* Moved some inline styles into default.css

BUG= 726449 , 728207 , 716692 

Review-Url: https://codereview.chromium.org/2921573002

[modify] https://crrev.com/1c9bfc6dd8d53a83332efae04b25611bb560660f/milo/appengine/frontend/expectations/buildbot.build-Debug_page-_CrWinGoma_30608.html
[modify] https://crrev.com/1c9bfc6dd8d53a83332efae04b25611bb560660f/milo/appengine/frontend/expectations/buildbot.build-Debug_page-_chromium_presubmit_426944.html
[modify] https://crrev.com/1c9bfc6dd8d53a83332efae04b25611bb560660f/milo/appengine/frontend/expectations/buildbot.build-Debug_page-_newline_1234.html
[modify] https://crrev.com/1c9bfc6dd8d53a83332efae04b25611bb560660f/milo/appengine/frontend/expectations/buildbot.build-Debug_page-_win_chromium_rel_ng_246309.html
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[modify] https://crrev.com/1c9bfc6dd8d53a83332efae04b25611bb560660f/milo/appengine/frontend/expectations/swarming.build-build-internal.html
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[modify] https://crrev.com/1c9bfc6dd8d53a83332efae04b25611bb560660f/milo/appengine/frontend/expectations/swarming.build-build-running-logdog-no-annotation-stream.html
[modify] https://crrev.com/1c9bfc6dd8d53a83332efae04b25611bb560660f/milo/appengine/frontend/expectations/swarming.build-build-running-logdog.html
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[modify] https://crrev.com/1c9bfc6dd8d53a83332efae04b25611bb560660f/milo/appengine/frontend/expectations/swarming.build-build-unicode.html
[modify] https://crrev.com/1c9bfc6dd8d53a83332efae04b25611bb560660f/milo/appengine/frontend/static/buildbot/css/default.css
[modify] https://crrev.com/1c9bfc6dd8d53a83332efae04b25611bb560660f/milo/appengine/frontend/templates/pages/build.html

Turns out the fix was to move the "float: right" item to the front.