Hi there,
Add the following CSS:
.admin-bar.stickynav.nav-below-header #site-navigation,
.admin-bar.stickynav.nav-above-header #site-navigation,
.admin-bar.nav-below-header #site-navigation,
.admin-bar.nav-above-header #site-navigation {
top: 0px;
}
.stickynav.nav-below-header #site-navigation,
.stickynav.nav-above-header #site-navigation {
border-top: 0 none;
position: relative;
top: 0;
width: 100%;
max-width: 100%;
z-index: 100;
opacity: 1;
-webkit-transition:opacity 0.2s ease-in-out;
-moz-transition:opacity 0.2s ease-in-out;
-o-transition:opacity 0.2s ease-in-out;
transition:opacity 0.2s ease-in-out;
}
.stickynav.nav-below-header #site-navigation:hover,
.stickynav.nav-above-header #site-navigation:hover {
opacity: 1;
-webkit-transition:opacity 0.2s ease-in-out;
-moz-transition:opacity 0.2s ease-in-out;
-o-transition:opacity 0.2s ease-in-out;
transition:opacity 0.2s ease-in-out;
}
.nav-above-header #site-navigation {
border-top: 0 none;
position: relative;
top: 0;
width: 100%;
max-width: 100%;
z-index: 100;
-webkit-transition:opacity 0.2s ease-in-out;
-moz-transition:opacity 0.2s ease-in-out;
-o-transition:opacity 0.2s ease-in-out;
transition:opacity 0.2s ease-in-out;
}
You’ll want to add it using the #2 or #3 methods on this page: http://generatepress.com/knowledgebase/adding-css/