Thanks a lot Oscar.
You fixed it!
I am using standard RW blog pages and can imbed videos into them. Here is one of the blog pages. For example, scroll down to the third item which starts āUkraineā and the second graphic is an embedded video. Scroll down further to an item which starts āCanada: 2 laserings of commercial airplanes in 2 monthsā and there is another working embedded video.
A third example is under the item āUK: Footage of Birmingham helicopter tracking suspect after being laseredā.
Usually I go to YouTube, get the embed code, put it in the blog text and maybe change the height and width to fit my column. It seems to work.
Videos from other sources such as Vimeo should work as well. My blog is not video centric so if a video does not play, I just link to the source, but I have gotten a number of embedded videos to work with the standard RW blog page, no other files or HTML (other than the embed code) needed.
Here something to this. Embedded video files from youtube or vimeo, with the original iframe code, but responsive, with a little CSS code in RW.
img, iframe { max-width: 100%; }