html,
body,
header,
.jarallax {
    height: 70px;
}

@media (max-width: 740px) {
    html,
    body,
    header,
    .jarallax {
        height: 10vh;
    }
}

@media (min-width: 800px) and (max-width: 850px) {
    html,
    body,
    header,
    .jarallax {
        height: 10vh;
    }
}

@media (min-width: 560px) and (max-width: 660px) {
    header .jarallax h5 {
        display: none !important;
    }
}