hmmm, i’ve tried one more time today and the problem was gone. Sorry. Thank you.
The change is in =Main Navigation, Line 3977 in the original style.css
.navbar-inverse {
text-align: left;
background: rgba(0, 0, 0, 0.6);
border: 0; }
you have to change rgba color. 255, 255, 255, 0.6 for white.
