html {
    scroll-behavior: smooth;
}

.masthead {
    background-size: cover;
    min-height: 90vh;
    position: relative;
    color: white;
}

.colour-overlay {
    position: absolute;
    background-color: rgba(0, 0, 0, 0.4);
    height: 100%;
    width: 100%;
}

h1 {
    font-size: 3rem;
}

.singleCol {
    max-width: 750px;
    margin: 0 auto;
}

.darkBG {
    background-color: #363636;
    color: white;
}

@media (max-width: 768px) {
    .masthead {
        min-height: 50vh;
    }
    h1 {
        font-size: calc(1.525rem + 3.3vw);
    }
}