WordPress.org

Codex

Interested in functions, hooks, classes, or methods? Check out the new WordPress Code Reference!

Know Your Sources

For Your Records

As you design your Theme or style, you will be using HTML and CSS references. Here are a few resources you will become very familiar with over time. We recommend that you save or bookmark this page as a reference while you're working on your WordPress Themes.

HTML

PHP

   * Language Reference
   * Function Reference
   * Features
   * Security

Learning PHP

Books

CSS

Learning CSS

Style Guides

CSS Expertise and Examples

Layout Resources

Boxes and Design Elements

Forums and Mailing Lists

If you want to learn more about CSS, especially cutting edge CSS and web page designs, visit one of these forums and mailing lists to share your thoughts and learn from others.

Books

The following are some of the best books to help you learn more about CSS and web page design.