Last week, for no discernible reason, any post I compose (including opening previously written drafts) displays only as bold. It is browser independent, occurring in both Chrome and Firefox. I've had to change themes because of it. I'd like to revert back to Twenty Eleven but when I tried reverting, the same bold text behaviour started. Since the theme does not come with ability to change font I have no idea what happened nor how to fix it.
Any input appreciated.
The blog I need help with is loneswimmer.com.