body {
    color: black; background-color: #FFFFFF;
   
   
   margin: 20px;
    
    text-align: center;  /* Zentrierung im Internet Explorer */
  }

#starttab {
margin 0 auto;
background-image: url(img/start.jpg);
background-repeat:no-repeat;
background-position: center ;
text-align: center;  


}

#buttontab {
margin 0 auto;
text-align: center;  
margin-top: 120px;
}



  #logo { width: 950px; margin: 0 auto; height: 160px; background-color: #DEDEDC; text-align: center; visibility: visible; display: block }
#inhalt { width: 950px; margin: 0 auto; background-color: #ACAED4; text-align: center; padding-top: 20px; padding-bottom: 50px;  visibility: visible; display: block }