inspec/www/source/stylesheets/_typography.scss

h1,h2,h3,h4,h5,h6 {
  font-family: $main-font;
}

.main-subhead {
  @media (min-width: 640px) {
    font-size: 30px;
  }
}

p, ul {
  @media (max-width: 400px) {
    font-size: 14px;
  }
}