popov.link/_scss/components/theme/_typography.scss

b,
strong {
  font-weight: bold;
}

p {
  margin-top: 0;
}


h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 300;
  letter-spacing: .01em;
  margin-bottom: 2rem;
  margin-top: 0;
}

h1 {
  font-size: 4.6rem;
  line-height: 1.2;
}

h2 {
  font-size: 3.6rem;
  line-height: 1.25;
}

h3 {
  font-size: 2.8rem;
  line-height: 1.3;
}

h4 {
  font-size: 2.2rem;
  line-height: 1.35;
}

h5 {
  font-size: 1.8rem;
  line-height: 1.5;
}

h6 {
  font-size: 1.6rem;
  line-height: 1.4;
}