remove category name on blog page

I want to add ‘Blog’ posts to the main menu. So in the menu I added Categories – Uncatagorized to the menu and this works. But I want to get rid of the very large ‘page’ name ‘Category Archives: Uncategorized’ that sits atop the posts. I know how to get rid of actual page titles but that doesn’t affect this Categories page. Is there some CSS code I can add? Thanks! Your theme is the bomb!