Hello,

You can change the menu items size in the Theme Settings > Typography in the very bottom of the options page https://prnt.sc/10x54p6

You can find additional options in the Advanced typography option, which allows you to choose the item from a drop-down or insert your custom CSS class. Please navigate to the Theme Settings > Typography > Advanced Typography.

Here is the documentation providing more detailed instructions: https://xtemos.com/docs/woodmart/advanced-typography-settings/

Best Regards