#artikel {
    width: 65%;
    height: auto;
    
}


#impressum {
    width: 100%;
    height: 30px;
    
    background: grey;
    
    position: relative;
    top: 30px;
    
    /border: 1px solid green;
    
    text-align: center;
    
    margin-top: 20px;
    
    z-index: -1;
}

#impressum p {
    
    color: black;
    
    /border: 1px solid black;
    position: relative;
    
}