How can i change the top menu button height in the header or border width

I will change the top menu button size the height from the button. The button is now to small. I have try different things notting help in the themes menu code xml. 

This is my thes xml button code.

 
#0073C6
#FFFFFF
#0073C6
#0085E8
#FFFFFF
#0073C6
#0073C6
#FFFFFF
#0073C6
#0073C6
#FFFFFF
#0073C6
#0073C6
#FFFFFF
#0073C6
True
True
True
True
True
True
True
True

If it is not configurable in the theme, then you probably can’t change it.