I'm using custom blocks like in this example
.rmdcomment {
padding: 1em 1em 1em 4em;
margin-bottom: 10px;
background: #f5f5f5;
position:relative;
}
.rmdcomment:before {
content: "\f075";
font-family: FontAwesome;
left:10px;
position:absolute;
top:0px;
font-size: 45px;
}
My question is how to make the background color respond to the design chosen by the user which is either "White", "Sepia" or "Night.
I want to add the context to css, but unfortunately don't know how to do it. My guess is to add the color-scheme in one way or another resulting separate "Sepia-Theme-Block-background" and "Night-Theme-Block-background".