body{background-color:#beb49f;background-image:url('https://images2.imgbox.com/9e/92/9wpYeSsz_o.png');}  
#behind { height:800px;width:800px;position:absolute;top:0px;bottom:0px;left:0px;right:0px;margin:auto;overflow:hidden;}
#behind iframe {position:relative;top:-620px;left:55px;}