Minor UI freeze break - bug 745095

[Allan Day <allanpday gmail com>]

Hi all,

With the notification redesign landing so late, it had some rough
edges in certain places. I'd like to land a small CSS patch to take
care of some of those. Bug 745095 [1] has the details, including
before and after screenshots [2].

Thanks,

Allan

[1] https://bugzilla.gnome.org/show_bug.cgi?id=745095
[2] https://bug745095.bugzilla-attachments.gnome.org/attachment.cgi?id=297958