#video{
	margin-top: 60px;}
#video-boton{
	border: #777 1px solid; 
	width: 210px; margin: 10px auto;}
#video-boton a{
	color: #777; display: block; padding: 5px; font-size: 15px;}
#video-boton a:hover{
	background: #444; color: #fff;}
#video iframe{
	border: 4px solid #efefef;}
@media only screen 
and (min-width : 301px)
and (max-width : 530px) {
#video iframe{
	width: 330px; height: 180px; margin-left: auto;}
}
@media only screen 
and (min-width : 531px)
and (max-width : 639px) {
#video iframe{
	width: 400px; height: 226px;}
}
@media only screen 
and (min-width : 640px){ 
#video iframe{
	width: 560px; height: 310px;}
}