div.referenz {
    width:280px;
    float:left;
    display:block;
    margin:15px 15px 0;
}
#main div.referenz h2 {
    width:280px;
    margin:0;
}
#main div.referenz p {
    width:280px;
    height:115px;
    overflow:hidden;
    margin:0;
    text-align:justify;
    font-size:13px;
}
div.referenz img {
    margin:5px 0;
}