Could someone explain to me how to customize Bootstrap's input type="email" validation tooltip like the one below?
Or better yet, could someone explain how customize Bootstrap's validation tooltips in general?
EDIT:
It has been pointed out by Le_Morri that this is actually a HTML 5 validation tooltip. I am going to leave up the question for other people who make the same mistake as I did.
The following questions will help with HTML5 validation styling,