H1{font-size:60px}h2{font-size:50px}h3{font-size:40px}h4{font-size:30px}@media screen and (max-width:992px){H1{font-size:45px}h2{font-size:40px}h3{font-size:35px}h4{font-size:30px}}@media screen and (max-width:767px){H1{font-size:40px}h2{font-size:35px}h3{font-size:30px}h4{font-size:25px}}