.img-services {
    min-height: 22vh;
    background-image: url('/assets/images/image1.jpg');
    background-size: cover;
    background-position: center;
}
@media only screen and (min-width:768px) {

    .img-services{
        min-height: 40vh;
    }
}

@media only screen and (min-width:992px) {

    .img-services{
        min-height: 80vh;
    }
    header{
        box-shadow: 2px 2px 24px rgba(0,0,0,.1);
    }
}