Download this video here: goo.gl/yU6Kk
This is 2 1080p HD motion graphics videos of glowing lines and rectangle shapes tracing around each other to make a elegantly flowing background in either a bright white/blue color or a bright yellow color. The brightness is very high so it makes it very easy to display dark text on top of this background for trailers, credits, section heads, etc. You could describe the video style as hightech, shiny, soft, matrix grid, tron style, etc. Both videos are seamlessly looping with a length of 16 seconds each.