header {
  background: #ebf8fe url("../projects/chatter/header_mobile.jpg") no-repeat center top; }
  @media only screen and (min-width: 601px) {
    header {
      background-image: url("../projects/chatter/header.jpg"); } }
  header h1 {
    color: #222 !important;
    text-shadow: 1px 1px 1px rgba(255, 255, 255, 0.5);
    font-size: 3.5em !important; }
    @media only screen and (min-width: 601px) {
      header h1 {
        font-size: 6em !important; } }