body{
    background-color: #b4d4fc;
}

#wrapper {
   width: auto;
   margin: auto;
   height: 100%;
}

header{
    background-color: #6babfa;
    height: 20%;
}

nav{
    background-color: #cadffa;
    height: 4em;
}

article {
   
   padding: 10px;
   margin: 20px;
   border: 5px solid black;
   float: left;
   
}

#zijblok{
    padding: 10px;
    marging: 20px;
    border: 5 px solid black;
    float: right;
}