Thank you so much! 
This is really what i’m expecting for!
here is my customization based on your code.
And i realize that “author” would be hidden after the other repliers on desktop, in my case, it looks like this:
// Hide from embedded posts
.topic-owner article .row .embedded-posts .topic-body .topic-meta-data .names::after {
content: “”;
border: none;
padding: none;
}
but it doesn’t been needed on mobile, why is that? 