.mobileHeader {
  width: 100%;
  height: 50px;
  line-height: 50px;
  color: white;
  font-size: 1.7rem;
  font-weight: 600;
  text-align: center;
  box-shadow: 0px 1px 3px 0px rgba(0,0,0,0.6);
  margin-bottom: 1rem;
  position: relative;
}

@media screen and (max-width: 991px) {
  .mobileHeader {
    font-size: 2.3rem;
  }
}