what class or other selector does the multiple column css apply to?
is that selector a part of the main page? or the content being edited in HTML Editor?
is the css to define that class or selector applied to the page you have HTML Editor on?
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.