Remove Youtube Logo from Embeded Video

If you want to remove youtube logo from your embed video on your site then edit default code look like below with ?modestbranding=1

See the below default code that got it from youtube:

<iframe width="640" height="480" src="http://www.youtube.com/embed/L5jbXuq_S3A" frameborder="0" allowfullscreen></iframe> 

Now after edit ?modestbranding=1 embed code:

<iframe width="640" height="480" src="http://www.youtube.com/embed/L5jbXuq_S3A?modestbranding=1" frameborder="0" allowfullscreen></iframe> 

Result: