<iframe width="420" height="315" src="https://www.youtube.com/embed/-HWABDBCVbQ" frameborder="0" allowfullscreen=""/>
E so colocar onde esta o link (https://www.youtube.com/embed/-HWABDBCVbQ) o video q vc quer....
E so colocar onde esta o link (https://www.youtube.com/embed/-HWABDBCVbQ) o video q vc quer....