Scroll bar on the top right frame

PLEASE READ THIS BEFORE POSTING: Read before posting / reporting bugs

Describe the problem you’re having:

When I click on the “mark as read” button on the top right frame, the menu is moved to the left and a scoll bar appears

If possible include steps to reproduce the problem:

See above

tt-rss version (including git commit id):

17.4-145-gaf13f300

Platform (i.e. Linux distro, PHP, PostgreSQL, etc) versions:

Shared hosting, MySQL.
I am currently having the issue with Chrome 61.0.3163.100
I tested on Internet Explorer and tt-rss works fine.

Please provide any additional information below:

See the screenshots below. I cleared cache and cookies.

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