javascript - Place content over *fullscreen* video using Chrome extension -

is there way place regular html content (like div/span/etc) on fullscreen html5 video using chrome extension? way on flash video?

edit: want extension building shows lyrics in sync song playing on video (when user wants, is).

make background.

video#bgvid { position: fixed; top: 50%; left: 50%; min-width: 100%; min-height: 100%; width: auto; height: auto; z-index: -100; -webkit-transform: translatex(-50%) translatey(-50%); transform: translatex(-50%) translatey(-50%); background: url(blablabla.jpg) no-repeat; background-size: cover; }