#fenster {width: 1300px; background: black; margin: auto;}
#rahmen {border: solid #000000 1px; padding: 10px; width: 1300px; margin:auto;}
#head {width: 1300px; height: 170px; background: #bfe2f9;}
#main {width: 1300px; height: 1000px; background: #8dcb41;}
#left {float: left; width: 900px; height: 1000px; background: #feede3; font-size:15px;}
#right {float: right; width: 400px; height: 1000px; background: #e7573b;} 
#footer {width: 1300px; height: 50px; background: #fffbc6; margin: auto;}