how to remove the colour of menu links on upfront ?

Hi, i want to edit the floating menu on upfront, i have changed the colour of the bar however the links for the menu "Main" have a grey background colour that i would like to remove so that it is just white text of the menu links overlaid on the floating menu. cant see where to edit this ? see here - http://take.ms/jU0Dp

Domain - http://tinyurl.com/p3jv7az
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Thanks

Tom