h1{font-size:3.75rem;line-height:1}h2{font-size:3rem;line-height:1.2}h3{font-size:2.25rem;line-height:1.25}h4{font-size:1.875rem;line-height:1.375}h5{font-size:1.5rem;line-height:1.5}h6{font-size:1.25rem;line-height:1.5;