The text above uses tabs to align data in columns. Except it doesn't align the data (I'm departing from the book here...). The (draft) HTML3 specification uses an ID="name" attribute to create each tab stop, and the source-text is marked up accordingly. But in Netscape 2.0 the table will not portray itself clearly because Netscape 2.0 only uses HTML2.

(And what happened in Netscape 3.0? - it used the "final" HTML 3.2 specification, which dropped the proposed idea of tabs... illustrating the golden rule that one should only use existing mark-up that works equally in all current browsers. - Pvh 4/98).