#mainNav {
    background-color: #303337;
}

#contact {
    margin-top: 165px;
}

button#submitButton {
    background-color: #303337;
}

button#submitButton:hover {
    background-color: #212529;
}

@media (max-width: 768px) {
    h2.section-heading.text-uppercase {
        padding-top: 60px;
    }

    button#submitButton {
        margin-bottom: 60px;
    }
}