.footer-bg-contact-us {
    transform: rotate(90deg);
    -ms-transform: rotate(90deg); /* Internet Explorer */
    -moz-transform: rotate(90deg); /* Firefox */
    -webkit-transform: rotate(90deg); /* Safari 和 Chrome */
    -o-transform: rotate(90deg); /* Opera */
    font-size: 1.88rem;
    padding-left: 7.5rem;
    padding-top: 10.5rem;
    letter-spacing: 0.5rem;
}