*{ 
margin:0px;
podding:0px;
}
header { 
position: absolute; 
top:0px;
left:0px;
width: 100%;
height: 10%;
background-color:#B0C4DE ;
text-align: center;
}
nav { 
position: absolute; 
top:9%;
left:0px;
width: 100%;
height: 10%;
background-color:#C0C0C0 ;
text-align: center;
}
section { 
position: absolute; 
top:17%;
left:0px;
width: 100%;
height: 68%;
background-color:#D3D3D3;
background-image:url(img/robot2.jpg);
}


article{
	margin:60px;
	podding:10px;
	border: 2px balck solid;
	background-color:#B0C4DE;
	text-align: center;
	}

aside{ 
position: absolute; 
top:9%;
left:80%;
width: 100%;
height: 20%;

}
footer{ 
position: absolute; 
top:85%;
left:0px;
width: 100%;
height: 100%;
background-color:#C0C0C0;
}