2 lines in notification bar breaks layout
When the user is logged off on any Stack Exchange site, the standard 'Welcome to Q&A' greeting appears at the top of the screen. The entire webpage tries to shift downward by the size of the banner, but it seems to assume that the banner is exactly one line tall. In cases where the browser window is fairly small, the line wraps over and causes the height of the welcome banner to increase, cutting off the menu items.
It's not really anything serious, since the user can just click the 'x' or maximize their screen, but it's been bothering me.