re_peter on "how to remove large black area on top and bottom of video"

I am working on a site that features lots of videos. They look good until I view them on an ipad or an iphone. What apears are a large black bars above and below video. At one time I had posted videos from vimeo into a responsive wordpress theme and it scaled perfectly. Did something change? Am I delusional? Help!

site

http://colorblindmedia.com/

Thank you!