See existing issues https://github.com/WordPress/gutenberg/issues?utf8=%E2%9C%93&q=is%3Aissue+is%3Aopen+popover+overflow or https://github.com/WordPress/gutenberg/issues?utf8=%E2%9C%93&q=is%3Aissue+is%3Aopen+popover+height+

Also seems similar to #25.

I think we can use this to track the broader issue and close #25 with #31.

In digging into this and trying to understand the math in https://github.com/WordPress/gutenberg/blob/master/packages/components/src/popover/utils.js#L79-L162, it seems that the inner content height at the time of the popover initially being calculated on first open and on repositioning is 30px, my suspicion is that it's not fully rendered yet, but I haven't dug into this much more yet.

Hey @jeffpaul @helen I noticed that the scroll bar was not working on the mobile devices, due to which all the icons were not accessible. So I added a scroll behaviour to the popover.
PR - #105

Demo
Desktop Behaviour - https://share.getcloudapp.com/6quv0BdP
Mobile Behaviour - https://share.getcloudapp.com/NQu7dDR9

Closed via #105.