CSS

In web development, Cascading Style Sheets (CSS) is a stylesheet language used to describe the presentation of a document written in a markup language. Its most common application is to style web pages written in HTML and XHTML, but the language can be applied to any kind of XML document, including SVG and XUL.

Diagram of the basic elements and process flow of Extensible Stylesheet Language Transformations.

AjaXSLT is an open source project developed by Google. AjaXSLT is the technology that Google uses for projects such as gmail and Google Earth. Google released it as an open-source javascript library. You can download and try it out for free.

In the package that google provides it has some confusing filenames. xslt.html is a test page that uses XSLT and can be run from your hard drive without a web server. The coolest part with this page is that you can edit some XML and CSS and if you click process it executes your code and displays it. It’s phenomenally efficient.

xpath.html is an interactive parser.

A JavaScript library is a library of pre-written JavaScript controls which allow for easier development of JavaScript-based applications, especially for AJAX and other web-centric technologies.

Accessible Web design is the art of creating webpages that are accessible to everyone, using any device. It is especially important so that people with disabilities - whether due to accident, disease or old age - can access the information in Web pages and be able to navigate through the website.