I asked the same question:
<object width="425" height="344"><param name="movie" value="https://www.youtube.com/v/pxpst1AyvxE&hl ... ram><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="https://www.youtube.com/v/pxpst1AyvxE&hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>
