I think this says it all:
<iframe width="560" height="315" src="https://www.youtube.com/embed/KVyRBCk_V1s" frameborder="0" allowfullscreen></iframe>
<iframe width="560" height="315" src="https://www.youtube.com/embed/KVyRBCk_V1s" frameborder="0" allowfullscreen></iframe>