.intro {
    height: 100vh !important;
}

.col-sm-6, .col-md-6 {
    height: 100%;
    padding: 0;
}

.col-sm-12 {
    height: 100% !important;
    padding: 0;
}

@media (max-width: 767px) {
    .col-sm-6 {
        height: 50vh;
    }
}