Loading Navigation twice - this sait & not only

[Adlago]

If you look in the sources code will be showing:

and this

What is this idea? Or a bug?

[BB Themes]

Where did you find this 2nd one?

a list on lines 3000, hmm? I doubt that that second one is an navigation item for the main nav though, would be strange 

 

[TSP]

The second occurrence is the mobile navigation.

This is quite a common approach for menus on responsive sites. The reason being the menus are usually laid out quite differently on the mobile view and the desktop view. Which would make it impossible or at least very finicky to try and achieve it all with the same markup and just different CSS. It's easier to just have different markups to work with in that case.

[Adlago]

I saw it first in my sources mobile version. There is also however double.