img.siegel {
    float: right;
    max-width: 100px;
    max-height: 100px;
}

@media (min-width: 770px) {
    img.siegel {
        padding-right: 50px;
    }
}

@media (min-width: 992px) {
    img.siegel {
        padding-top: 30px;
        max-width: 250px;
        max-height: 250px;
    }
}