While you're at it, could you add some classes, too?
Selections like $('.navbar-collapse > .navbar-nav')[1] are very error prone as they depend on the order of the HTML elements. If it had a class / id, it would me much easier to select (and customize)
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Elements on the NavBar have an ID, e.g. n-mainpage-description or ca-talk.
These should additionally be available as classes, but otherwise... whatś missing?