How to Remove Inner Content Background from Home Featured

Your – “.full-width-content #content” on line 971 is what is adding the background color. You can override it by adding this –

.home #content {
    background: none !important;    
}

After you remove that a black background will show which is coming from –

.home #content,
.home #content-sidebar-wrap {
  background-color: #000000;
}

…and behind that is the background color from the content-sidebar-wrap on line 931

#content-sidebar-wrap {
	float: left;
	width: 750px;
	background-color: #e3e3e3;
}

which should be replaced with –

.home #content-sidebar-wrap {
    background: none;
}

It looks like you got it working? I don’t see the black box anymore.

Its because that particular page is also using the “home” class in the code (body) so it will reference the homepage code I gave earlier. You can see there are other classes added in the body, one is called “group-home”, so just add something like that to handle that specific page –

Example –

.group-home #content-sidebar-wrap {
    background: #e3e3e3 !important;
}

I have no idea, thats something you’d have to ask the plugin author/developer. I only mentioned the group class because thats what showed up in your source code.