Done replied .
it is already like that
No, currently your embed code is like this.
<div style="position:relative;padding-bottom:56%;padding-top:20px;height:0;"><IFRAME SRC="LINK VIDFAST" FRAMEBORDER=0 MARGINWIDTH=0 MARGINHEIGHT=0 SCROLLING=NO WIDTH=640 HEIGHT=360 allowfullscreen style="position:absolute;top:0;left:0;width:100%;height:100%;"></IFRAME></div>