@media (min-width: 800px) {
    #fon_big .videobl {
	 position: absolute;
    padding-bottom: 0px;
    height: 90%;
    overflow: hidden;
    margin: auto;
    top: 0px;
    left: 0px;
    bottom: 0px;
    right: 0px;
    z-index: 999;
    max-width: 800px;
    max-height: 600px;}
	#fon_big .videobl iframe {
	position: absolute; top: 0; left: 0; width: 100%; height: 100%;
	}
}