body {margin-left:3em;margin-top:3em;font-family: Arial, Helvetica, sans-serif;}

#background{
    position:absolute;
    max-width:100%;
    max-height:100%;
    z-index:1;}

#content_wrapper{position:absolute; width:100%; height:100%; top:0; left:0; overflow:auto; z-index:2;}

#content{width:960px; height:500px; margin: 0 auto; border:1px solid #ccc; }

.bigBild {
    max-width: 100%;
    max-height: 100%;}

.Titel {
    font-size: 150%;
    font-weight: bold;}

    .noGap {
        margin:0 !Important;
        padding:0 !Important;}
.unsichtbar {display: none;}