As mentioned in Chapter
4, some attributes of SVG elements control the element’s geometry.
An example of one such attribute would be the cx
(center x) attribute of a <circle>
. Other attributes, such as
fill
, control the element’s
presentation. Stylesheets provide a way for you to separate the
presentation from the geometric structure; this lets you control the
visual display of many different SVG elements (and even documents) by
changing one stylesheet referenced by all the documents.