@media only screen and (max-width: 973px) {
  #logo {
    width: 171px;
  }
}
@media only screen and (max-width: 480px) {
  #header-container #logo {
    float: none;
    text-align: center;
    width: 100%;
    height: auto;
    margin-left: 0;
  }
}