The mobile trigger is around 800px screen width, so Tablets larger than 800px will get the desktop styling which most of the times is not optimized for Tablets.
Adding a Tablet view to be able to modify the look for those specific devices would be ideal.
An interesting solution would be moving the 800px media query to something like 900px, or 768px which is one of the standards in multiple design libraries. This way, Tablets would get the mobile styling, but I assume there's more stuff to take into account other than media queries.