Both Menu’s

Hey i have a question about both menu’s mobile and desktop but first my compliments for the theme, it is nice and tight!

Ok…1. when i open my hamburger menu on mobile i cannot scroll down in the menu because than the menu dissapears it starts scrolling down the page instead of the menu. do you know how to fix this?

2. i want my desktop menu to have less height ( i want it to be a small bar at the top) and preferably i would like it to be position: absolute but i would like the menu to show again when someone scrolls up on the page. Any ideas about this?

i hope i have been clear enough with my questions.

Regards!