Hi
We have spotted an issue with Offcanvas Drilldown menu when using T4 framework and font size 17px.
The problem is the bottom menu items are becoming invisible when user drills down to one of the options. In our case, when user drills down to the bottom option and then goes back to main offcanvas menu, the last two options are not visible anymore.
This is very easy to reproduce on T4 BS5 Demo site.
1) Go to T4 settings -> Typography and set font size to 17px.
2) Open the demo and offcanvas
3) Click on "Layouts" then Go back to main menu
4) Result is "Mega menu" last item not visible:
The height calculation in the following might be a problem (example):
<nav class="navbar drilldown-effect" style="height: 205.633px;">