section h1 {
    color: #aaa;
}
section h2 {
    margin-top: 5px;
    margin-bottom: 0;
    font-size: 16px;
    text-align: center;
}
@media (min-width: 992px) {
    section .row > div {
        width: 20%;
    }
}
@media (min-width: 768px) and (max-width: 991px) {
    section .row > div:nth-of-type(n + 4) {
        margin-top: 20px;
    }
}
@media (max-width: 767px) {
    section .row > div + div {
        margin-top: 20px;
    }
}