Hi Matt,

here's a tip from Dev Guide:

Using your favorite CSS editor for stylesheet editing

If you want to edit CSS styles with your favorite editor, you can simply use the @import directive to import your static CSS stylesheet and edit it in your editor. After you finish the design, you can simply copy and paste the stylesheet to Kentico CMS stylesheet.

@import url(../app_themes/mywebsitestyles/mystyle.css);

I hope this helps. We will try to improve this in the next releases - I understand that using external editor is more comfortable.

Best Regards,