The fifth edition of this book represents a significant change in structure and content to
address HTML5. The book is similar to the previous edition in maybe a third of the
Tcontent; otherwise, it is an all-new effort. Most obviously, as compared to the previous
editions, which focused mainly on XHTML and HTML 4, this edition focuses on HTML5,
which represents both a return to the markup past and the unveiling of an exciting future of
Web applications. However, we do retain some information from previous editions because
in order for this work to be truly complete, we must not focus only on the future but also
present all the elements supported in browsers today, including the archaic, proprietary, and
standard (X)HTML tags. These will still be encountered for years to come, and we want this
book to provide the reference you need in addressing their syntax.
CSS coverage has been expanded greatly to fully cover CSS 2.1 as well as every proprietary
and emerging CSS 3 property supported in one or more popular shipping browsers circa 2009.
No value judgment is made; if Internet Explorer has supported a proprietary CSS feature for
the last decade, it’s included. However, we do avoid presenting CSS features that are truly
speculative in great depth, but where appropriate, we summarize or present pointers to the
emerging syntax.
address HTML5. The book is similar to the previous edition in maybe a third of the
Tcontent; otherwise, it is an all-new effort. Most obviously, as compared to the previous
editions, which focused mainly on XHTML and HTML 4, this edition focuses on HTML5,
which represents both a return to the markup past and the unveiling of an exciting future of
Web applications. However, we do retain some information from previous editions because
in order for this work to be truly complete, we must not focus only on the future but also
present all the elements supported in browsers today, including the archaic, proprietary, and
standard (X)HTML tags. These will still be encountered for years to come, and we want this
book to provide the reference you need in addressing their syntax.
CSS coverage has been expanded greatly to fully cover CSS 2.1 as well as every proprietary
and emerging CSS 3 property supported in one or more popular shipping browsers circa 2009.
No value judgment is made; if Internet Explorer has supported a proprietary CSS feature for
the last decade, it’s included. However, we do avoid presenting CSS features that are truly
speculative in great depth, but where appropriate, we summarize or present pointers to the
emerging syntax.
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