Vertical rhythm

Lorem ipsum isn't a great choice to use for demonstrating good typography. Ideally you would use real content. However for the demonstration in the post, I think it's acceptable. I could use my content, it would be strange and cause some duplication I imagine.

A heading that is quite long to show the line height

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Restinguet citius, si ardentem acceperit. Sed tu istuc dixti bene Latine, parum plane. Quid enim tanto opus est instrumento in optimis artibus.

A heading related to the one above

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Esse enim quam vellet iniquus iustus poterat inpune.

A heading related to the one above

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Esse enim quam vellet iniquus iustus poterat inpune.

A level 5 heading

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Esse enim quam vellet iniquus iustus poterat inpune.

A level 6 heading

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Esse enim quam vellet iniquus iustus poterat inpune.