This is useful for program listings, among other things. See the section Escape Sequences for more information. Most browsers generally change the margins for the quotation to separate it from surrounding text. A sentence should contain no unnecessary words, a paragraph no unnecessary sentences, for the same reason that a drawing should have no unnecessary lines and a machine no unnecessary parts. Omit needless words.
Vigorous writing is concise.
A sentence should contain no unnecessary words, a paragraph no unnecessary sentences, for the same reason that a drawing should have no unnecessary lines and a machine no unnecessary parts. A horizontal rule is useful to separate major sections of your document. Experiment with the settings until you are satisfied with the presentation. Logical styles tag text according to its meaning, while physical styles indicate the specific appearance of a section. In the ideal SGML universe, content is divorced from presentation.