Changing title link color

I need to change the title link for the Flat content-bottom layout. I am not a css expert, can you provide a css sample that will override the theme's default link color for linked titles in blocks, and how to implement that within the Post Grid plugin (I know how to add styles to the theme, I just need to know if I need to add a class or something within Post Grid)

Also, there seems to be a bug in your layout editor. When opened the default layout choice is "Flat" however the flat layout is not loaded it instead states "you haven't selected any layout. please select here "

However, when you choose any other layout, the layout dropdown disappears, so there is no way to get back to "Flat". It seems that the current settings for Flat can't be edited the way it is.