Leo, if you look at iheartsharing.com. There are Youtube video. It's displaying smaller size than that of Youtube so I knows it's shrinked. But I want to Enlarge it as much as I can. As you can see, one inch to the left and two inch to the right of empty space that video can make use of it. I knows that when I embed the video from Youtube the embed code is 560x349. But when it show at my site it's smaller. I want increase the video to cover as much spaces to the left and right in the comment windows as possible.