HTML Standards
Evergreen currently works to build pages that validate against the W3C's XHTML 1.0 standard.
The history of HTML at W3C starts with HTML 3.2, code named Wilbur, which was followed a few years later by HTML 4.0, then HTML 4.01. HTML 4.01 is the last version of HTML, and is also the final W3C specification to define the semantics of markup. From HTML 3.2 to HTML 4.01, the language has improved a great deal, focusing on such issues as:
- Separation of presentation from structure
- Improved accessibility features
- Improved internationalization features
- Improved document rendering
XHTML 1.0 was created shortly after HTML 4.01 to help the transition of hypertext to a new generation of mark-up languages for text.
[X]HTML Resources & Tools
Provided below are a large number of online resources (articles, documents, and entire web sites) that provide information on using and developing with HTML and XHTML.
Learning Resources & General Information
- A List Apart alistapart.com
- Webmonkey: The Web Developer's Resource webmonkey.com
Forms
- Accessible HTML/XHTML Forms: Beginner Level, Intermediate Level, and Advanced Level webstandards.org/learn/tutorials/accessible-forms
- Prettier Accessible Forms alistapart.com/articles/prettyaccessibleforms
- Sensible Forms: A Form Usability Checklist alistapart.com/articles/sensibleforms
- HTML Forms and Input w3schools.com/html/html_forms.asp
Embed/Object HTML Tags
- Bye Bye Embed alistapart.com/articles/byebyeembed
- Standards-compliant Web pages with captioning joeclark.org/access/captioning/bpoc/embed-object.html
Standards & Document Types
- XHTML 1.0 The Extensible HyperText Markup Language (Second Edition) w3.org/TR/xhtml1
The W3C's official recommendation that describes XHTML 1.0.
- HTML 4.01 / XHTML 1.0 Reference w3schools.com/tags
A great reference that shows all of the tags available in XHTML and the specific tags that were deprecated with the switch from HTML 4 to XHTML 1.0
- HTML Versus XHTML webstandards.org/learn/articles/askw3c/oct2003
- Fix Your Site With the Right DOCTYPE! alistapart.com/articles/doctype
Validation Tools
These tools can be used to validate if your page is valid [X]HTML and can help you to debug issues that prevent the page from fully validating.
- Firefox Developer's Plugin chrispederick.com/work/webdeveloper
Tools > Validate Local HTML(allows validation of non-public pages) - Firefox HTML Validator Extension users.skynet.be/mgueury/mozilla
- W3C Validator validator.w3.org
- W3C Multipage Validator validator.ca