.right_sidebar_1 iframe {
    height: 600px;
    width: 300px;
}

.cta_gruender_banner_mitte iframe {
    min-height: 250px;
    max-width: 970px;
}
.cta_gruender_banner_mitte iframe body{
overflow:hidden;
}
.right_sidebar_1 iframe {
   
    max-width: 300px;
}

@media (max-width: 567px) {
    .cta_gruender_banner_mitte iframe {
        min-height: 250px;
        max-width: 300px;
    }  
}