Annoying add reply post problem

Its hard to describe this problem but whenever someone moves their cursor over the Bbcoding icons it moves the post down below the other options.

I will post a few images to show what the issue is if my explanation is not easy to follow





I am certain I am not the first person to have this problem but I didn't know how to search for it lol

As you can probably tell this can get really annnoying when typing a lengthy post and I would rather my members not have to deal with such a problem if there was a way to fix it. This did not transpire on phpBB2 but since I changed it to phpBB3 it has become an immediate problem.

See if this helps - https://help.forumotion.com/t123093-reply-box-bug?highlight=post+reply ?

Thank you this code

Code:

#textarea_content textarea#text_editor_textarea {
width: 96% !important;
}

appears to have worked with my problem