Modify CSS

Hello!

I would like to change the appearance of the "Thanks, Tory" theme.

I have already found the CSS file (themes/default/css). Can I edit this file, very carefully?

You can. You might want to read through http://omeka.readthedocs.org/en/latest/Tutorials/workingWithPublicThemes.html

Thanks, Megan!

I am doing my best and trying not to break Omeka!

You're welcome. Good luck!