Illdy menu change font color

Hi, I’m creating a new web site using Illdy Theme which is a very beautiful theme.
I’d like, thought, to change the menù font color because I choose withe as the header background color but the texts disappears as soon as I scroll down.
Can somebody help me? I’ve been trying with some CSS script but nothing is changing.
Thanks

hey there

Please provide url of the website and I will check it

I can’t provide the url of my website because I’m creating it on my computer and it is not online yet

Hey there

Well, you may refresh this ticket once you make it available online

I think a variation of the CSS below might be what you are looking for.

/* Text colour of header menu when it is not sticky */

#header .top-header .header-navigation ul li a {
color: white !important;
}

/* Text colour of header menu when it is in sticky mode */

#header .is-sticky .top-header .header-navigation ul li a {
color: black !important;
}

I think whenever you want to style the menu in sticky mode you add the tag .is-sticky whenever you want to style it in mobile mode you add .open-responsive

Which gives the result as seen on my site danedits.co.uk (as you scroll menu font colour changes).