Web Designs using XHTML and CSS by S A Meadows
What is XHTML?
XHTML is an acronym for Extensible HyperText Markup Language. XHTML is almost identical to HTML 4.01 except that XHTML is a stricter and cleaner version of HTML. W3C defines XHTML as the latest version of HTML. XHTML is gradually replacing HTML.
Today's market consists of different browser technologies, some browsers run on computers, and some browsers run on mobile phones or other small devices. The last-mentioned do not have the resources or power to interpret a "bad" markup language. Many pages on the internet contain "bad" HTML.
This statement comes from the W3C tutorial website:
XHTML pages can be read by all XML enabled devices AND while waiting for the rest of the world to upgrade to XML supported browsers, XHTML gives you the opportunity to write "well-formed" documents now, that work in all browsers and that are backward browser compatible !!!
What is CSS?
Cascading Style Sheets (CSS) is a type of file used to add style (e.g. fonts, colors, spacing) to Web documents. CSS is used in conjunction with web pages written in HTML and XHTML. The CSS specifications are maintained by the W3C.