.display-great{
	display: inherit !important;
}
body, html {
	height: 100%;
	width: 100%;
	margin: 0px;
	padding: 0px;
}
#main {
   height: 80%;
   display: -webkit-flex;
   display: flex;
   flex-flow: row;
}
#main article {
	background: #CFC;
	flex: 3 1 60%;
	order: 2;
}
#main nav {
	background: #CCF;
	flex: 1 6 20%;
	order: 1;
}
#main aside {
	background: #CCF;
	flex: 1 6 20%;
	order: 3;
}
header{
	display: block;
	min-height: 10%;
	background: #10CEF0;

	} 

	footer {
	display: block;
	min-height: 10%;
	background: #10CEF0;
	text-align: center;


}

button{
	 width:200px;
	 background: #10CEF0;
	 height: 40px;
	  border-radius: 10px;

}

button:hover{
	background: #ff0;


}
#primera{
	width: 100px;

}


#segunda{
	float:right;
}

#video{
	padding: 2px 2px 2px 2px;
    margin-top: 5px;
    width: 50%;
    
    margin-left: auto;
    margin-right: auto;
    border: dashed red 3px;
}