Phire on "[Theme: Expound] Change text colour of Menu pages"

Dear forum,

I´d like to change the colours of all my vertical structured menu sites such as "Seiten" and "BlogsToGo". Right now they are blue AND underlined. I´d like to put them black and not underlined.

This is the blog:

I guess the reason why I can´t change it easily is because every text inherits a basic code. I´m using "My custom CSS" by the way.

Thanks in advance