While working through the v3 migration, I got tripped up by a change in ordering between _normalize.scss and some of the content styles, like _typography.scss.

For instance, in v2 headings have 0 for their margins, but in v3 headings have non-zero margins because _normalize.scss has higher precedence:

Version 2.x	Version 3.x

Similarly, the margins for buttons following a p tag are different:

Version 2.x	Version 3.x

Steps to reproduce the bug

I've created a repo reproducing this issue here: https://github.com/sawyerh/uswds-normalize-reproduction

To reproduce:

1. Install the project
2. Run the dev server
3. Toggle which stylesheet is commented out then wait for the stylesheet to recompile