h1{font-size:36px}h2{font-size:30px}h3{font-size:24px}@media (min-width:768px){h1{font-size:60px}h2{font-size:36px}h3{font-size:30px}}@media (min-width:1280px){h1{font-size:72px}h2{font-size:48px}h3{font-size:30px}}