There are no tabs in regular HTML; the kind of five-space paragraph indent used in standard printed paragraphs is replaced on Web pages (and in this book) by the paragraph break, in which each paragraph is set off by a line of white space.
You can, however, indent an entire block of text. One way to accomplish this is by using definition lists (see Formatting Lists, earlier in this chapter). Or use the <blockquote> tag, which is what Dreamweaver does.