Unfortunately no change. I even deleted the entire snippet of this “navbar-default” CSS without a change which led to believe that the behavior is being driven from some other code element.

My default browser is FF 51.0.1, but I also tried it in Chrome 56.0.2924.87 without a change.

I see that the navigation element sits inside the “navbar-header” div but I cannot find any related CSS for it in style.css. I turned on FF’s debugger and though it identified a good number of errors I could find nothing associated with the header/navbar that could cause a problem.

I did find a inline style sheet, dynamic.css, with the following code snippet and wondered if this was overriding style.css – here the piece I’m referring to:

.navbar-default .navbar-nav > li > a, .navbar-default .navbar-nav > .active > a {
opacity: 1;
visibility: visible;
-webkit-transition: opacity 0.24s ease-in-out;
-moz-transition: opacity 0.24s ease-in-out;
transition: opacity 0.24s ease-in-out;

and a few lines below this there is:

.navbar-default {

Could this be controlling the behavior of the header?

You’re help is greatly appreciated Hans!