XF 2.1 Remove subforums from forum list (mobile)

[Sentenza]

Hello,

I need the right code for the extra.less to disable the subforums only from the forum list. My code works, but on my mobile phone (iPhone XS) in portrait format, or when I reduce the Safari browser window, the subforums will appear again.

[data-template="forum_list"]
.node-subNodesFlat
{
display: none;
}

Thanks!

 

[Jovial Monk]

OK, created a category, made the Archives a child of that and the one subforum I made visible shows up when I open The Archives. Great!