HTML is one of the underlying technologies for your Web site, so it helps to know what it can and cannot do. However, you can edit pages in the Web target HTML editor without knowing HTML syntax. Page view (one of three views) in the HTML editor feels more like a word processor than a code editor.
You can also create styles in the Style Sheet editor without knowing the syntax for style definitions. If you do know HTML, the editors help you create more complex HTML layouts like tables and forms.
For JSP targets, you can edit pages in the HTML editor without knowing Java syntax. When you drag and drop controls onto a page, the HTML editor adds code that you can see in the Source view. For 4GL pages, this includes Java code to construct the control using 4GL object model classes.
If you need to create scripts, you certainly need to know about the objects on your page and their events, as well as the syntax of your scripting language. In addition to providing an object view of your document, the System Tree shows you the HTML object model.
