Part of the Stack Exchange JS library includes functionality to create notification messages - the most common perhaps being "Thanks, we'll take a look at it" after casting a flag.

These notifications also come in "toast" style, which is a notification not fixed to a particular element on the page, but to the top-right corner of the screen.

On any other Stack Exchange site, these work fine. On Ask Ubuntu, the Ubuntu top bar comes over the top of them - I guess there's a z-index issue there.

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And, to illustrate the overlap, this is the element as highlighted by Chrome's developer tools:

enter image description here

  • That bar has a z-index of 101. One could argue that the toast's CSS should be fixed instead of the site's CSS; But I can't seem to think of any element in the page that may appear all the way up there, and that shouldn't show over that bar. I think the z-index property should be dropped altogether from the top bar's CSS. – Dan Jan 11 '17 at 8:39

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