.dp-header__nav ul li a {
  font-size: 9px;
}

 @media only screen
and (min-device-width : 834px)
and (max-device-width : 1112px)
and (orientation : landscape)
and (-webkit-min-device-pixel-ratio: 2) {}
@media only screen
and (min-device-width : 834px)
and (max-device-width : 1112px)
and (orientation : portrait)
and (-webkit-min-device-pixel-ratio: 2) {}

@media (max-width: 480px) {
  .dp-header__nav ul li a {
    font-size: 9px;
  }
}