#hintergrund {
    display:none;
    z-index:8000;
    position: fixed;
    height:100%;
    width:100%;
    top:0px;
    left:0px;
    background:#000;
}
#popup {
    display: none;
     z-index: 8001;
    position: fixed;
    width:280px;
    top: 20%;
    left: 50%;
    margin-left: -160px;
    background: none repeat scroll 0 0 #fff;
    border: 4px solid #999;
    border-radius: 15px;
    font-family: Verdana, Geneva, sans-serif;
    font-size: 14px;
    color: #666;
    padding: 1px 10px 10px 10px;
}
#popup h2{
    font-size: 24px;
}
.schliessen {
    position: relative;
    background:#666;
    color:#fff;
    border-radius:50%;
    line-height:30px;
    text-align:center;
    font-size:17px;
    font-weight:bold;
    font-family:'Arial Black', Arial, sans-serif;
    height: 30px;
    width: 30px;
    left: 30px;
    bottom: 20px;
    float: right;
    cursor: pointer;
}