.main_text h2{font-size:25px}

@media (max-width:1199.98px) {
  .h1_div h1 {font-size: 34px}
  .main_text h2{font-size:30px}
}

@media (max-width:991.98px) {
  .h1_div h1 {font-size: 27px}
  .main_text h2{font-size:24px}
  .main_text2 .contact.btn{font-size:20px}
}

@media (max-width:767.98px) {
  .h1_div h1 {font-size: 19px}
}

@media (max-width:575.98px) {
  .h1_div h1 {font-size: 21px}
  .main_text h2 {font-size:19px}
}

@media (max-width:450px) {
  .h1_div h1 {font-size: 19px}
  .main_text h2 {font-size:20px}
  .main_text2 h3 {font-size:16px}
}