Trying to Enlarge My Video?

2whlrcr

Ok, I'm a newbie and computer illiterate. I bought a GoPro helmet cam and managed to upload a test video to my Smugmug. Is there anyway to view the video in a larger size? Mine says something like Size: Web/Auto. I can't figure out how to make it bigger.

Although when I embed to a forum, a scroll bar comes up at the bottom of the same video and I can make it full size. I'm on a Mac, if it matters.

Thanks