For me I can't fully confirm. While the some parts resize themselves based on the window's sizes (e.g. the video page and the search bar on the top) the footer

For me I can't fully confirm. While the some parts resize themselves based on the window's sizes (e.g. the video page and the search bar on the top) the footer and video list (when logged in) are still of fixed width. I could be though, that you have a newer design than me.