Tooltips don't work well on IOS Safari

[merland]

SeedPicker is not meant to be used primarily on mobile devices but people should be able to check it out on their phones or tablets.
To get the tooltips on the site (the circular question marks), the bulma extension bulma-tooltip has been used.
Works perfectly on all tested platforms except Safari on IOS (Iphone and Ipad). The tooltips show up but don't go away until you click another question mark or the input field...

Strangely IOS Safari behavior is good on the official demo, so I can't see why it doesn't work well on SeedPicker.