BuddyPress.org

hi there

The problem is , the css selectors for top navigation is not targeted well in style-Orange.css

have a look at this section in your stylesheet

/*

/*

/*

below this you will see something like

#page ul

#page li

approximately 5 rules there.

Change them to something like

#top-nav ul(replace these 5 #page with #top-nav) then open your header.php and put a div around the top navigation.

Give it an id like

<div id="top-nav">

..your original ul/li codes for navigation

</div>

and update.

this should work.

It is all because the stylesheet is not correct and the css selectors are not targeted well.