Sun, Sep 5
Jul 23 2021
I'm commenting here due to no replies in this task.
Jul 6 2021
Jun 9 2021
Jun 8 2021
Jun 7 2021
@Aklapper Sorry for inconvenience, I've updated the description to provide more details.
More styles should be added to improve the appearance, and wikipage.content hook should be fired.
Apr 24 2021
Apr 22 2021
As a discusser of this problem on zhwiki, I'd like to provide more information:
First, the problem is not only related to ActionFieldLayout, ButtonGroupWidget (with a non-label icon-only button and a button with label inside) is also affected.
Second, the problems always exist on zhwiki (without changing browser's font size). There's a default gadget enlarging the article area's font size in zhwiki (link here), which is considered the cause of the problem.
Third, here're two photos describing the problem before and after disabling the gadget.
After disabling the gadget, the widget aligns as expected.