@media (max-width: 640px){
  h1{
    font-size: 34px !important;
    line-height: 1.08 !important;
  }

  h2{
    font-size: 28px !important;
    line-height: 1.1 !important;
  }

  h3{
    font-size: 20px !important;
    line-height: 1.15 !important;
  }
}

@media (max-width: 480px){
  h1{
    font-size: 28px !important;
    line-height: 1.08 !important;
  }

  h2{
    font-size: 24px !important;
    line-height: 1.1 !important;
  }

  h3{
    font-size: 18px !important;
    line-height: 1.15 !important;
  }
}