@media only screen and (max-width : 1200px) {
    h1 {
        line-height: 50px;
        font-size: 44px;
    }
}

@media only screen and (max-width : 768px) {
    h1 {
        font-size: 32px;
        line-height: 36px;
    }
    .contact-form, .revs {
        grid-template-columns: 1fr;
    }
    header img {
        margin-top: 15px;
        max-width: inherit;
        width: 100%;
    }
    .about-section {
        padding-top: 0px;
    }
}

@media screen and (max-width: 660px) {
    .pad {
        padding: 0px 20px 0px 20px;
        box-sizing: border-box;
    }
    input[type="submit"] {
        width: 100%;
    }
}