I discovered that WordPress is ignoring my call to the reset.css stylesheet that is under the CSS folder.
I was calling it like this:
<link href='css/reset.css' rel="stylesheet" />
in the <head> of the document (which is contained inside header.php), before the call to style.css. I had to call it like this:
<link href='<?php bloginfo( 'stylesheet_directory' ); ?>/css/reset.css' rel="stylesheet" />
I still don’t know why the Editor allows me to edit certain files while not others.
