word puts styles inline, so they will over ride your css.
When pasting from word, you should use the paste Form word tool, this will strip the word styles away so that your sites styles can take over.
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.