Heading style utility classes are overridden within page content

[cjg89]

Currently, it's impossible to assign a .h2 class to a <h1> element without having Archer set as the font family. Ideally, we should be able to adjust heading sizes using these heading utility classes without the font family also being impacted.

This issue stems from the fact that a good number of pages on the Brand site have no <h1>. We can't currently assign a <h1> without modifying those headings' styles.