atomiks/tippyjs v4.0.4 on GitHub

This release mainly fixes some minor CSS issues

Make rem units align with whole pixels using 16px base default
Size round arrow closer to default sharp arrow so it reaches the edges of the popper + reduce arrow margins overall
Fix infinite loop when popperOptions is undefined instead of an object
Fix small gaps when using the round arrow in Edge/IE11
Fix longstanding issue (since v0) of Popper's preventOverflow not taking into account the distance prop