I noticed that Discourse embeds in the comments on the main website don’t really look good. It doesn’t look like an embed. I threw together some CSS to give it a little styling and make it stand out a bit more. But any styling to help it stand out will do, doesn’t have to be this.
.discourse-comments-area .comment-list .comment-content aside.onebox{
padding: 1em;
border: 1px solid #eee;
border-radius: 2px;
box-shadow: 0 0 5px -5px #000;
}
.discourse-comments-area .comment-list .comment-content aside.onebox h3{
font-size: 1em;
}
This is before and after: