#video{width: 100%; max-width: 800px; margin-top: 100px;}
#video .boton a{
	color: #333; display: block; padding: 10px 0; width: 200px; border: 1px solid #333; }
#video .certificados .boton a:hover{opacity: 0.5;}
#video iframe{
	border: 1px solid #666;}
@media only screen 
and (min-width : 481px)
and (max-width : 530px) {
#video iframe{
	width: 380px; height: 210px;}
}
@media only screen 
and (min-width : 531px)
and (max-width : 600px) {
#video iframe{
	width: 400px; height: 226px;}
}
@media only screen 
and (min-width : 601px)
and (max-width : 670px) {
#video iframe{
	width: 450px; height: 252px; }
}
@media only screen 
and (min-width : 671px)
and (max-width : 710px) {
#video iframe{
	width: 500px; height: 284px;}
}
@media only screen 
and (min-width : 711px)
and (max-width : 750px) {
#video iframe{
	width: 560px; height: 314px;}
}

@media only screen 
and (min-width : 751px)
and (max-width : 800px) {
#video iframe{
	width: 600px; height: 340px;}
}
@media only screen 
and (min-width : 801px)
and (max-width : 825px) {
#video iframe{
	width: 620px; height: 350px;}
}
@media only screen 
and (min-width : 826px)
and (max-width : 850px) {
#video iframe{
	width: 670px; height: 380px;}
}
@media only screen 
and (min-width : 851px)
and (max-width : 900px) {
#video iframe{
	width: 700px; height: 400px;}
}
@media only screen 
and (min-width : 901px)
and (max-width : 999px) {
#video iframe{
	width: 790px; height: 446px;}
}