.four-column h1 {
    font-size: 16px;
    font-weight: normal;
    line-height: 140%;
}
.four-column .pagethumbnail {
    border: 1px solid #fff;
    border-radius: 2px;
    display: inline-block;
    height: 170px;
    width: 100%;
}
@media (max-width: 991px) {
    .four-column .pagethumbnail {
        height: 130px;
    }
}
@media (max-width: 767px) {
    .four-column .pagethumbnail {
        height: 200px;
    }
}