body, html{
height: 100%;
width: 100%;
margin: 0px;
padding: 0px;
backcolor: blue;
}

h2 {
	margin: 5px 0px 0px 0px;
	padding-top: 1%;
	text-align: center;
}
ul{
	line-height: 1.5;
}
h1 {
	text-align:center;
}
#main {
	height: 80%;
	display: -webkit-flex;
	display: -ms-flexbox;
	display: -webkit-box;
	display: flex;
	flex-flow:row;
}

#main article{
    background: yellow;
    flex: 3 1 60%;
    order: 2;
}

#main nav{
	background: purple;
	flex: 1 6 40%;
	order: 1;
    display: -webkit-flex;
    display: -msflexbox;
    display: flex;
    flex-flow:column;
}

header, footer{
	display: block;
	min-height: 10%;
	background-color: blue;
}

header {
	border-radius: 50% 50% 0 0;
	box-shadow: 0 0 5px 5px #888;
}

footer {
    text-align: center;
    background-color: green;
    padding: 0px 5px 5px 5px;
    margin-top: 5px;
    padding-top: 20px;
    color: white;
    
}

#marco {
	width: 90%;
	height:70%;
	background-color: red;
	margin: 10px;
}

#foto {
	background-color: white;
	border-radius: 50% 50% 50% 50%;
	width: 30%;
	height: 30%;
	border: 5px solid blue;
	background: url("./tux.png") center no-repeat;
	background-size: 100% 100%;
	flex: 1 6 20%;
	order 1;	
	margin-left:30%;
}

#video {

	background-color: brown;
	flex: 6 1 50%;
	order 2;
}