Mobile menu expanded by default

This is more a bootstrap question, but since Wappler layouts are based on Bootstrap, posting my question here so it might help others having that question except me.

Is it possible to have the menu expanded by default when viewing on mobile? I mean to not have to click the burger button in order to expand the menu but to have it expanded by default. I tried the
aria-expanded="true"
but did not work.

Thank you!