I can't find how to change the color of this Blue line on a menu Element

Context : site eliserocher.divhunt.art / NavbarNew component / view 480px

When the screen is switching to the hamburger menu, there’s a blue line appearing and I can’t find a way to make it black (Paint in Black - The Rolling Stones :smiley: ).
Any idea ?

It’s most likely border left and border bottom on that navbar on resolution 991px or something. I remember using that component before, and I am pretty sure border is activated on some lower breakpoint. If you don’t find it, let me know, so I can check it for you :slight_smile:

deleted because found a way to get this OK.
still having the blue line for hamburger

Solved, I needed to explicitely select border none for top level container (the Navbar section)