Remove the search icon the menu (Catch Responsive), custom size buttons…

I like Catch Responsive. 1/ But when I add more than one line of buttons in the primary black menu, then it creates an unnecessary 3rd line, showing only the search icon, that I do not wish. Is there a way to fix that in the CSS thing maybe ? 2/ And also, the sizes of the "buttons" of the menus are way to big for me, it takes a lot of space, for example around all the little flags. I want to reduce the sizes (margins, spaces, heights etc) of the buttons. How to do ? Thanks a lot.