Unable to reproduce the issue on Ubuntu 14.04 and Win-10 using chrome reported version #63.0.3239.30 and latest dev #64.0.3278.0.

Attached a screen cast for reference.

Following are the steps followed to reproduce the issue.
------------
1. Opened the attached file "r.html" file.
2. Moved mouse slowly up and down the Chinese characters.
3. Observed that top parts are clickable without any issues.

jidanni@ - Could you please check the attached screen cast and please let us know if anything missed from our side. Also please check the issue on latest dev #64.0.3278.0 by creating a new profile without any apps and extensions and please let us know if the issue still persist or not.

Thanks...!!

Deleted: 791327.ogv 2.2 MB

	791327.ogv 2.2 MB View Download

Yes that is a very good movie and indeed
I can see your version / operating system lacks the bug.

The difference I see is:

 \    not hyperlinked
----- yes hyperlinked
 ---  yes hyperlinked
 ---  yes hyperlinked
 ---  yes hyperlinked
 | |  yes hyperlinked
 ---  yes hyperlinked

Therefore it perhaps is a Linux-only bug.

Version: 63.0.3239.40-1
Kernel: Linux 4.14.0-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=zh_TW.UTF-8, LC_CTYPE=zh_TW.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8)
Versions of packages chromium depends on:
ii  chromium-common      63.0.3239.40-1
ii  libasound2           1.1.3-5
ii  libatk1.0-0          2.26.1-1
ii  libavcodec57         7:3.4-4
ii  libavformat57        7:3.4-4
ii  libavutil55          7:3.4-4
ii  libc6                2.26-0experimental1
ii  libcairo2            1.15.8-2
ii  libcups2             2.2.6-2
ii  libdbus-1-3          1.12.2-1
ii  libevent-2.1-6       2.1.8-stable-4
ii  libexpat1            2.2.3-2
ii  libflac8             1.3.2-1
ii  libfontconfig1       2.12.6-0.1
ii  libfreetype6         2.8.1-0.1
ii  libgcc1              1:8-20171128-1
ii  libgdk-pixbuf2.0-0   2.36.11-1
ii  libglib2.0-0         2.54.2-1
ii  libgtk2.0-0          2.24.31-3
ii  libharfbuzz0b        1.7.1-1
ii  libicu57             57.1-8
ii  libjpeg62-turbo      1:1.5.2-2
ii  liblcms2-2           2.8-4
ii  libminizip1          1.1-8+b1
ii  libnspr4             2:4.16-1
ii  libnss3              2:3.34-1
ii  libopus0             1.2.1-1
ii  libpango-1.0-0       1.40.13-2
ii  libpangocairo-1.0-0  1.40.13-2
ii  libpng16-16          1.6.34-1
ii  libpulse0            11.1-3
ii  libre2-3             20170101+dfsg-1
ii  libsnappy1v5         1.1.7-1
ii  libstdc++6           8-20171128-1
ii  libvpx4              1.6.1-3
ii  libwebp6             0.6.0-4
ii  libwebpdemux2        0.6.0-4
ii  libwebpmux3          0.6.0-4
ii  libx11-6             2:1.6.4-3
ii  libx11-xcb1          2:1.6.4-3
ii  libxcb1              1.12-1
ii  libxcomposite1       1:0.4.4-2
ii  libxcursor1          1:1.1.14-3
ii  libxdamage1          1:1.1.4-3
ii  libxext6             2:1.3.3-1+b2
ii  libxfixes3           1:5.0.3-1
ii  libxi6               2:1.7.9-1
ii  libxml2              2.9.4+dfsg1-5.1
ii  libxrandr2           2:1.5.1-1
ii  libxrender1          1:0.9.10-1
ii  libxslt1.1           1.1.29-5
ii  libxss1              1:1.2.2-1+b2
ii  libxtst6             2:1.2.3-1
ii  zlib1g               1:1.2.8.dfsg-5

Versions of packages chromium recommends:
ii  fonts-liberation  1:1.07.4-5

Versions of packages chromium suggests:
pn  chromium-driver    <none>
pn  chromium-l10n      <none>
pn  chromium-shell     <none>
pn  chromium-widevine  <none>

Thank you for providing more feedback. Adding requester "krajshree@chromium.org" to the cc list and removing "Needs-Feedback" label.

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

Unable to reproduce on Linux. What font is used to render the Chinese characters on your system? (inspecting the element and scrolling to the bottom of the "computed" style tab will show it under the "rendered fonts" section).

Liberation Serif—Local file(6 glyphs)
WenQuanYi Zen Hei—Local file(2 glyphs)

https://packages.debian.org/sid/fonts-wqy-zenhei

Thank you for providing more feedback. Adding requester "eae@chromium.org" to the cc list and removing "Needs-Feedback" label.

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

I also see in a "Properties" box there in the Inspector, a suspicious
202 which maybe should be 222. Alas attempting to copy it gives:

offsetHeight
:
202
offsetLeft
:
8
offsetParent
:
body
offsetTop
:
86
offsetWidth
:
956

https://bugs.chromium.org/p/chromium/issues/detail?id=792531#c1

Thanks!

Sorry.
All I know is I opened two bug reports and pasted various things into each.
https://bugs.chromium.org/p/chromium/issues/detail?id=791327
https://bugs.chromium.org/p/chromium/issues/detail?id=792531
The interesting conclusion is that on Linux the linked height of the box
doesn't reach as high as it should.

I can't reproduce this either. Probably the font has broken metrics? Did you try other fonts, or other browsers with the same font?

Please test the s.html file with the
"WenQuanYi Zen Hei system
Used as: "WenQuanYi Zen Hei""
In Firefox, the <strong> area reaches the top. In chromium it doesn't.

I didn't try to reproduce this yet but we have had metrics issues with fonts from the WQY group before, compare https://bugs.chromium.org/p/chromium/issues/detail?id=233851#c11

OK I added a note there.

Building a Chromium at #527672 and installing fonts-wqy-zenhei 0.9.45-7 and looking at s.html and r.html I do not see the issue. I do get the same output as Comment #6 and I see the same glyph shapes as seen in the screen captures in both this issue and those posted at  issue 792531 , however the highlight on my local machine covers the full glyphs. Can someone who can reproduce report which version of the fonts-wqy-zenhei package is installed?

I don't know what more feedback I can give you.
If you are in central Taiwan welcome to come to my mountain for a demo.

Thanks for the invite, but save us a trip and post the output from "dpkg -l fonts-wqy-zenhei" instead. If you can attach a screenshot of the problem, that would be good to have as well.

OK problem now gone in
Version 72.0.3626.7 (Developer Build) built on Debian buster/sid, running on Debian buster/sid (64-bit)
You can close the bug!

Thanks for verifying.