@media only screen and (max-width: 991px) {
  .contact_info h1{
    font-size: 45px;
  }
  .contact_info h3{
    font-size: 20px;
  }
}

  @media only screen and (max-width: 767px) {
    .contact_info{
      margin: 30px 0;
    }
    .contact_info h1{
      font-size: 35px;
    }
    .contact_info h3{
      font-size: 18px;
    }
    footer p{
      font-size: 14px;
    }
  }
  @media only screen and (max-width: 575px) {
    .contact_info h1{
      font-size: 25px;
    }
  }