My text area font has changed. Is there a way to change it back to default?

I was responding to a post yesterday. I thought I clicked the text area to start typing but apparently missed it and as I looked down at the keyboard I fired off dozens of keyboard shortcuts or something. I hid and saved the post I was responding to about a dozen times according to the little pop ups I saw when I looked back up. I had to then figure out how to unhide the post, which I managed.

But now every time I type a comment my text is compressed as I'll show in the photo link. It goes back to normal when I use the markdown editor but the "fancy pants" editor does this now. Can I change it back to default?

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[Screenshot of how the font has changed](http://www.doougle.com/pics/redditfont.png)