h1
  | Header Level 1
h2
  | Header Level 2
h3
  | Header Level 3
h4
  | Header Level 4
h5
  | Header Level 5

div[style="background: black;"]
    h1.white.uc.my-header
      | Header Level 1

p
    | Lorem ipsum dolor sit amet, consectetur adipisicing elit. Officia ea iure nobis nam quia excepturi dolorum et odio enim quos ipsum laborum at voluptatibus suscipit pariatur quo, beatae necessitatibus debitis.