.kasten{
    width: 55vw;
    float: left;
    border-radius: 15px;
    background-color: #E9E9E9;
    padding: 0.5vw;
    margin-right: 2vw;
    margin-bottom: 2vh;
}
.halbiert{
    width: 35vw;
    float: left;
    margin-top: 75px;
}
.buttonklein{
    max-width: 200px;
}
h2{
    color: #b1157e;
}
@media only screen and (max-width:960px){
.kasten{
    width: 100%;
    float: none;
}
.halbiert{
    width: 100%;
    float: none;
    margin-top: 25px;
}
}