[Theme: Moesia] Remove welcome logo on smartphone

Hi @ all,

I have a question concerning the welcome logo of the Moesia Theme.
On mobile screens the logo is in front of the navigation and you can’t see some navigation poits.

Thats why I want to remove the logo on small screens.
I already tried this:

@media screen and (min-width: 992px) {
 img.welcome-logo {
	visibility:hidden
	}
and
	.welcome-logo{
	visibility: hidden
	}

display:none won’t work, too.

Hopefully someone can help me.

Regards amnesia