Why are some categories in my store header underlined?

[caseland]

hi everyone,

i don’t know when this happened but some of the categories on my shop’s header are underlined. i didn’t do anything, tried to change it but couldn’t see a setting like that. could this be a glitch? how would you solve it?

thank you!

website: https://www.thecaseland.com/

reference image:

[Kloonk]

They appeared underlined because the links in the navigation main menu was setup to homepage or dead link (#) was attached to it. No need to change the code, just update the links to the right collections