Word to HTML converts your Microsoft Word document to HTML, CSS, and a Web Page. When you convert your Word document to HTML, you will be shown the underlying HTML and CSS in the Task Pane and the actual Web Page in a separate browser.
Word to HTML is great for teaching and learning HTML and CSS. It is also great for creating Web Pages. Let the Add-in generate the HTML and CSS for you, then simply copy and paste the code into your Web editor.
Please note that Word to HTML uses HTML5 and will not work in Internet Explorer 9.