@media screen and (max-width: 30em) {
  #mainFrame {
    margin-left: 1em;
  }
}

@media screen and (max-width: 22em) {
  .contact {
    flex-direction: column;
    font-size: 1.1em;
  }
  .contactLabel, .contactInfos {
    padding-bottom: 0.2em;
  }
}