removing underline from a specific link in the mobile menu navigation

Hi, 

I've seen similar posts to mine, but unfortunately, none of the solutions helped my case.

On the website I'm building, I have a dropdown-menu under "music" on the main navigation menu. 

The first problem I encountered was that the first link ("releases") of the dropdown menu was underlined both on desktop view and mobile. I figured it out how to remove the underline on the desktop view, but can't seem to find a solution for the mobile view. 

If you click on a link in the "music" dropdown menu, you will see that only the first one ("releases") gets underlined when active. None of the others gets underlined when active.

Please, could you help me with this?

@ca_rolf Can you share your site URL? 

https://echidna-kumquat-rnt3.squarespace.com/ yes

omg!!! it worked!! I've been trying to solve this for days!!! thank you SO much!!!!!<3