WYSIWYG tools are ideal in print, and garbage in web design.
The tools of print design are far superior to the tools of the web designer. In InDesign, you click and drag boxes around and they stay where you leave them. Need three columns of text instead of three? It’s only a few clicks away. You get pen tools and pencil tools and resizing tools, all of which behave like the metaphor that they are.
Adobe tried to bring these same metaphors to WYSIWYG web design tools like Dreamweaver, but it doesn’t hold up. You can’t just draw a box on a canvas and drag it around and expect a program to turn that into perfect HTML and CSS. There are too many other factors that come into play. The result is either going to be exactly how you drew it and full of terrible inflexible code, or not at all how you drew it.
If you are coming to web from print, don’t expect to use the same tools you did before. At least not in the same way. Prepare to code, but don’t worry, it’s really not that complicated.
This section, that I completely agree with, was taken from css-tricks.com.
