#logo{
  background: #27509B;
}
.display_mobile{display: none;}
.display_hd{display: inline-block;}
@media only screen and (max-width: 47.9375em){
  .display_mobile{display: block;}
  .display_hd{display: none;}
}


@media screen and (max-width: 48em){
  #header {
      background: #27509B;
  }
}