1.5 Summary
With CSS, it is possible to completely change the way elements are
presented by a user agent. This can be done at a basic level with the
display The real importance of external style sheets is
the way in which they allow authors to put all of a
site's presentation information in one place, and
point all of the documents to that place. This not only makes site
updates and maintenance a breeze, but it helps to save bandwidth
since all of the presentation is removed from documents.
firm
grasp of the way CSS selects pieces of a document for styling, which
is the subject of the next chapter.
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