Example below:
<iframe width="560" height="315" src="http://www.56.com/embed/PWf4WUoMXwg" frameborder="0"> </iframe>
Vimeo embed:
Example below:
<iframe width="560" height="315" src="http://www.56.com/embed/PWf4WUoMXwg" frameborder="0"> </iframe>
Vimeo embed: