Adjust spacing of specific items on mobile drop-down menu

Hello! Is it possible to adjust the spacing inbetween specific items of the drop-down menu, for mobile only? I've set up a mega menu for the desktop site.

The headings (Tableware, Serveware & Kitchen) are set up as links. The other items (mugs etc..) are set up as pages.

Marta 7.0 - everystory.co.uk

Any advice is appreciated!