There was a remaining issue when the window was made very narrow in
desktop mode (smaller than 500px). This patch doesn't aim to really
"fix" the dialog's design in this case. The goal is to make the popup
window appear less broken, so the text can stil be read and the
buttons clicked. That's all.
This patch should not have any effect in:
a) mobile mode,
b) desktop mode when the window is wider than 500px.
Bug: T294839
Change-Id: I3171dbb991533b91eaadba63b78d0ff40aa486dc
It's good practice to make transparent elements transparent
for mouse clicks as well, i.e. make it possible to select text
behind the fade effect.
Bug: T283943
Bug: T286235
Change-Id: Ib5022a74c70e4b7cb5e2a0faad20bd9abcc0da36
Also allow preview elements to existing with an mw-body-content
area withouth the font size being applied twice.
Depends-On: Ibbf989dcebf2d21fd2ac481f17062f366ff29e41
Change-Id: I284bcd5dd25cdbb883427ebacb41af1bbf50b60f
