.whychoose {
    background-image: url("../images/care.png");
    background-color: #fff;
    position: relative;
    background-repeat: no-repeat;
    background-position: right;
    background-size: contain
}
@media (max-width: 768px) {
    .whychoose {
        background-size: cover;
    }
     
}