Tested the same on mac 10.11.5 chrome version 51.0.2704.84 and canary 53.0.2766.0 navigating to URL https://jsbin.com/puzarakubu/1/edit?css,output - observed that both the divs fit into the space.

Please find the screenshot

Could you please try the same on a new profile with no extensions/apps and update the thread. You can create a new profile from chrome://settings. If issue still exists please try the same on mac 10.11.5 to see if issue is specific to 10.10.5

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	Screen Shot 2016-06-14 at 11.19.47 AM.png 397 KB View Download

I've tested on chrome 51.0.2704.84 as a guest and still get the problem (see attached screenshot.

I've also tested on canary 53.0.2766.0 and it works fine. Same on OSX 10.11.4 (I don't have access to 10.11.5 I'm afraid).

Thanks for the help!

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	chrome_new_profile.png 196 KB View Download

Sorry, I said 'guest' when I meant to say the screenshot is from a tab with a new profile. I did also try it as a guest and still saw the problem.

Thank you for providing more feedback. Adding requester "tkonchada@chromium.org" for another review and adding "Needs-Review" label for tracking.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Unable to reproduce on either windows or Mac in either Stable, Beta or Canary.
Does this work in beta or canary for you or is it broken in all three? 

Removing myself as owner as no action required from my end.

Just downloaded Version 52.0.2743.41 beta (64-bit) of Chrome and it is broken on that too on my machine 10.10.5.

Canary and stable test as mentioned in previous comments.

Thank you for providing more feedback. Adding requester "eae@chromium.org" for another review and adding "Needs-Review" label for tracking.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Odd. Thanks for confirming. None of us have been able to reproduce the problem in either 51 or 52 but it is somewhat comforting that it appears to work for you in 53.

Marking as closed as we're unable to reproduce the issue and as it doesn't happen for the reporter in canary.

We've noticed that you need to have the 'Experimental Web Platform features' flag set to get font-size-adjust as a CSS property chrome recognises.

Before closing this issue it's worth making sure you try the testcases with and without the flag set.

Reopening as per comment 12 noting that the 'experimental web platform features' flag needs to be turned on.

This looks similar to https://bugs.chromium.org/p/chromium/issues/detail?id=627054

mikelawther@, Could you please confirm if both are same.

Able to reproduce this issue on Windows 7, Ubuntu 14.04 and Mac OS 10.11.5 using chrome Stable M51-51.0.2704.106.

Bisect Information:
=====================
Good build: 43.0.2343.0 
Bad Build : 43.0.2345.0 

Change Log URL: https://chromium.googlesource.com/chromium/src/+log/f82e8f7c7ab63b38b715c664f3bb23a608b5d28b..d05209674f5bf7bad0e37fa07247e2dbf9684642

From the above change log suspecting below change

Review URL: https://codereview.chromium.org/1028943002

shivamidow@ - Could you please check whether this is caused with respect to your change, if not please help us in assigning it to the right owner.

Thanks!

That's just the change that moves font-size-adjust to experimental...

I don't think this is a regression, just a new bug. We need to find the root cause of this, and hopefully fix  bug 626670  and  bug 627054  as well.

shivamidow@ are you the best person to contact about font-size-adjust bugs?

As shivamidow didn't respond so far, I think he or she should be unassigned as owner, so somebody else can step up and tackle this issue.

Sebastian

I don't think I can look into this any near time soon. Sorry.

This bug is tagged as regression.Which means that the bisects are incorrect or do not have an owner who is actively investigating.
Requesting the reporter to triage and update the behavior in all the latest chrome channels and bisect if needed.Close as WontFix if not reproducible.

Cleaning up "Needs-Review" label as we are not using this label for triage anymore. Ref bug for this cleanup 684919

This issue has been Available for over a year. If it's no longer important or seems unlikely to be fixed, please consider closing it out. If it is important, please re-triage the issue.

Sorry for the inconvenience if the bug really should have been left as Available.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Now works as expected.