Your Godot version: N/A

Issue description:
Godot docs frequently use <abbr> tags that show a tooltip with additional information when hovered on desktop browsers. For touch devices where hovering isn't possible, there's some CSS magic to show a custom tooltip when the word is tapped instead. This is great, but unfortunately the mobile tooltips in their current state often aren't usable in practice because large parts of the tooltips end up off-screen or cut off at the table edge.

I wanted to attach some screenshots, but image upload to GitHub is failing for me (seemingly because of CORS errors of all things??).

URL to the documentation page: Most, but for example: https://docs.godotengine.org/en/stable/classes/class_node.html#methods

Note: I have a proposed fix nearly ready for this, I'll put up a PR soon :)