change color menu text

Hi,

Thanks for you answers

I changed the background but I can not turn the color of the menu text in black what should I change?

my css code

#masthead {
background: #FFF ;
background-image: -webkit-gradient(linear, left bottom, left top, from(#000 ), to(#000));
background-image: -moz-gradient(linear, left bottom, left top, from(#000 ), to(#000));
background-image: -ms-gradient(linear, left bottom, left top, from(#000 ), to(#000));
background-image: -o-gradient(linear, left bottom, left top, from(#000 ), to(#000));
color: #FFF;
}

URL: http://rivageproductions.fr