body {width: 100%; background-color: #efefef; margin: 0;}
.topbar {width: 100%; height: 100px; background: #C0C0C0; }
.header {width: 100%; background: #696969;}
.logo {margin-left: 200px; margin-top: -30px; position: absolute;}
.footer {height: 500px; background: #C0C0C0; }

#menu ul {  
    list-style-type: none;  
    position: absolute;
    margin-top: 35px;
    margin-left: auto;
    margin-right: auto;
}  
#menu ul li {  
    display: inline;  
    margin: 0;  
}  
#menu ul li a {  
    padding: 15px;  
    background-color: #C0C0C0;  
    font-family: Verdana;  
    color: white;  
}  
#menu ul li a:hover {  
    /* Nieuw */  
    background-color: #000000 

}

.banner {
    text-align:center;
    width: 100%;
    height: 500px;
}
.banner-inner {
    display:inline-block;
    position:relative;
    margin-left:auto;
    margin-right:auto;
    text-align:left;
    margin-top: 12px;
}
.banner img  { display: block; }

.postcode {
    background-color:#ccc;
    position:absolute;
    top:50px;
    left:20px;
    width: 400px; height: 200px;
    margin-top: 200px;
}

.postcode h3 {
    font-family:sans-serif;
}