#nav{ 
position:absolute;
top:0;
left:0;
border:1px;
width:auto;
height:auto;
text-align:left;
margin:1em;
}
#vorschau
{position:absolute;
top:70px;
left:0px;
border:0px;
width:50%;
height:auto;
padding:10px;
text-align:right;
}
#text{ 
position:absolute;
top:200px;
left:0;
border:1px;
width:45%;
height:auto;
text-align:left;
margin:0;
}

#rechts
{position:absolute;
top:40px;
right:0;
border:0px;
width:45%;
min-height:120px;
padding:10px;
text-align:center;
}