java
html
php
c
mysql
database
linux
android
ruby-on-rails
eclipse
silverlight
flash
html5
facebook
oracle
php5
api
postgresql
dom
Well, you have a specific size (640px 360px) set on the #myVideo div, so the video element inside is 100% of that box. If you remove the pixel dimensions - or try changing them to max- -- it should be scalable.