EasyBlog - How to Make YouTube Embeds Responsive at Larger Viewport Size?

Hi, on my blog which uses EasyBlog, I began using EasyBlog's two Composer features "Add Cover Photo" and "Embed Video," in order to feature photos and videos on my site, as opposed to using JCE Editor, which I still use, but less and less, thanks to Composer/EasyBlog's capabilities.

A problem I'm having now is, Photos and Videos end up responsive, but at differing Viewport sizes. When I reduce the size of my browser, the Right Sidebar affects the Cover Photos which are uploaded properly, forcing them to gradually respond; however, doing the same thing with embedded videos does not achieve the same effect.

See example of this here: http://www.cmsconnection . Scroll down to see how photo images respond, vs. videos (see video on this article: http://www.cmsconnection.com/marketo-news/4-marketing-lessons-from-youtube-giants )

I attached 2 screen captures, for context - one of video embed, one of image, when Browser size is reduced.