Have trouble changing colors on certain pages using Extra.less

[oO5 Dynasty]

So I want to change the Nav bar to be transparent inside of category pages.
My main problem is I don't know how to tell the code to do that in extra.less
Code:

.p-nav {
    color: #e4eaee;
    background: #44454700;
}

category_view is what I want to change.