h1{font-size:clamp(2.5rem,5vw,4.5rem);line-height:1.1}h2{font-size:clamp(2rem,4vw,3.25rem);line-height:1.15}h3{font-size:clamp(1.5rem,2.5vw,2.25rem);line-height:1.25}h4{font-size:clamp(1.125rem,1.5vw,1.5rem);line-height:1.3}