body {
background-color: #ffffff;
}

#all {
height: 800px;
width: 1000px;
}

#navi {
background-image: url(bilder/oben.jpg);
height: 100px;
width: 1000px; 
}

#links {
background-image: url(bilder/links.jpg);
float: left;
height: 470px;
width: 100px; 
}

#inhalt {
background-image: url(bilder/task.jpg);
overflow: auto;
height: 470px;
width: 800px; 
float: left;
text-align: center;

}

 
#rechts {
background-image: url(bilder/rechts.jpg);
float: right;
height: 470px;
width: 100px; 
}

#unten {
background-image: url(bilder/unten.jpg);
top-align: 600px;
height: 230px;
width: 1000px; 
}