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Although there is no requirement for XHTML 1.0 documents to be compatible with existing user agents, in practice this is easy to accomplish. Guidelines for creating compatible documents can be found in Appendix C. 5.1. Internet Media Type XHTML Documents which follow the guidelines set forth in Appendix C, “HTML Compatibility Guidelines” may be labeled with [...]
This section is normative. 2.1. Terminology The following terms are used in this specification. These terms extend the definitions in [RFC2119] in ways based upon similar definitions in ISO/IEC 9945-1:1990 [POSIX.1]: May With respect to implementations, the word “may” is to be interpreted as an optional feature that is not required in this specification but [...]
This section is informative. XHTML is a family of current and future document types and modules that reproduce, subset, and extend HTML 4 [HTML4]. XHTML family document types are XML based, and ultimately are designed to work in conjunction with XML-based user agents. The details of this family and its evolution are discussed in more detail [...]
To make your life alot easier you can define the common XHTML tags you use on your webpages within your Stylesheet, doing this can define a certain tag globally and you’ll never have to modify it within your XHTML again! In this tutorial we will show you the XHTML tags you can define in CSS! [...]
The structure of a XHTML document is slightly more different than a standard HTML. You will have certain parts in XHTML such as doctype’s and XML properties that HTML doesn’t have, there’s ultimately the same type of code language, but with changes, but it’s important to understand the basics of XHTML after all it’s the [...]
Centering a website is a key part of many CSS layouts. While there are many ways to do it in a variety of situations, the following is an explanation that is purely CSS, avoids messing with percentages, and is compatible with all modern browsers.