@media only screen and (max-width: 700px) {
  .q_logo a {    
    height: 55px !important;
  }
}

@media only screen and (max-width: 480px) {
  .logo_wrapper {    
    width: auto;    
    margin: 0 auto;    
    display: table;    
    left: 50%;    
    position: absolute;
  }
}