When it comes to Web publishing, a little bit of HTML knowledge goes a long way. You can make a change in the code and-presto!-the result shows up in your browser, giving you almost instant satisfaction. Likewise, if something looks funky in Design view (or in your browser) and you can't tell what's wrong, a peek at the code often reveals the culprit (which can be as simple as a broken tag or a line break where it shouldn't be). A couple of keystrokes get you back on track.
Expression Web knows how to take care of just about any Web-design problem with its toolbars, task panes, or dialog boxes. But the simple fact remains: Some details are just easier to fix in the code. When you know how to navigate your page's code, you can efficiently make piecemeal changes to your pages. If you want to get serious about Web publishing, HTML fluency has no substitute.