HTML and CSS Reference
HTML is the framework of the Web. his chapter describes how the
Web works and provides a bit of Web history for context. You will
learn about the client/server architecture of the Web and how it is
hyperlinked. I'll present the Web Bestiary of acronyms and deinitions and
discuss the philosophy and implications of HTML5.
Although this chapter is about the Web and HTML, it actually contains
very little HTML. If you want to get right into learning the HTML language,
skip this chapter and go to the next. You can come back here later to help con-
solidate what you have learned.
HyperText Markup Language (HTML) is the language of the Web. If you
could listen to the conversation between your computer and the websites you
visit, you would hear HTML spoken. Web servers accept requests from your
browser as you visit and interact with the sites they host. In reply, the servers
return marked-up content that your browser formats into the web page you
see. Web servers also send requests to each other, gathering and exchanging
data that power search engines and make a rich variety of social and commer-
cial transactions possible.
HTML is not a programming language like C, Perl, or Ruby. HTML is a
semantic language for marking up text. he markup provides a description of
the content that Web browsers use to construct the corresponding web page.