.hideSection {
  visibility: visible;
}

.mobileAbout {
  visibility: hidden;
  height: 0;
  margin-top: 0;
  padding-top: 0;
}

@media only screen and (max-width: 600px) {
  .hideSection {
    visibility: hidden;
    height: 0;
    margin-top: 0;
    padding-top: 0;
  }

  .mobileAbout {
    visibility: visible;
    height: auto;
  }
}