How to make the background of my breadcrumbs transparent?

Hi there,

I am wondering…

I use a transparent header for my website and it looks really beautiful. Until now I avoided breadcrumbs in the menu, because they are shown grey on white background – which doesn’t fit to the context.

I clicked myself through this forum and found, that it is possible to change that (even for mobile devices)
with this CSS:

/*transparent breadcrumbs*/
title_container {
background-color: transparent!important;
border: none!important;
}

@media only screen and (max-width:767px) {
.title_container .breadcrumb {
border-style: none !important;
}
}

I added this to the quick CSS under “allgemeines Styling” – but it doesn’t have any effect.
I added this to “Themes – Customizer – Additional CSS” – but this doesnt has any effect as well…

What do I have to do, so that enfold notices my Changes?

Many thanks in advance for your help!
Kerstin