For some reason, Chrome on my computer's been adding some weird user agent stylesheets to all my sites, leading to some weird formatting (for example, header > h1 doesn't have any letter spacing). You can see some of the user agent stylesheets being applied here:
I have confirmed that this problem is only on my computer, and no other computers have problems viewing these sites. I don't have any extensions installed.
How do I disable/remove these stylesheets?