header {
    background-color:#3d3f74;
    color:white;
    text-align:center;
    padding:5px;	 
}
nav {
    line-height:30px;
    height:500px;
    width:250px;
    float:left;
    padding-left:15px;	      
    padding-right:25px;	      
}
section {
    width:20rem;
    height:40rem;
    float:left;
    overflow-y:scroll;
    padding-left:10px;	 	 
    padding-right:10px;	 	 
}
article {
    float:center;
    text-align:center;
    horizontal-align:center;
    padding-left:10px;
    padding-right:10px;
}
footer {
    background-color:#3d3f74;
    color:white;
    clear:both;
    text-align:center;
    padding:5px;
    font-style:normal;	 	 
    font-size:13px;
}
#foot:link {
    font-weight:normal;
    text-decoration: none;
    color: #ffffff;
}