Strange behavior of justify-content: center in FF?

Question

css

Hello. There is a problem in Firefox when aligning an element to the X-axis center flexbox.
Here is an example of a typical codepen.io/anon/pen/ONwjMy?editors=1100
text-align & vertical align not suggest.

Answer 1

This is a bug https://bugzilla.mozilla.org/show_bug.cgi?id=984869
You can add an additional wrapper