MDN HTML

The HTML page on the Mozilla website has resources and tutorials for coding HTML documents. I have utilized these tutorials and example codes many times while building my bitweb1 sites. I take comfort in knowing there is a reliable and up-to-date site for web designers to find solutions and to learn.

MDN CSS

Mozilla's CSS page has the exact same feel and layout as it's HTML page. There is an abundance of CSS snippets available on this page. I really enjoy being able to go to this site to find unique and new (to me) ways to style my web pages. The navigation and search functions work flawlessly everytime. Any time I need to find a CSS work around, this is my first choice for a solution.

Summary

Mozilla Developer Network is a great resources to web designers. They offer a plethora of tutorials and code for free. I have not had any issues with invalid or out of date code on this site. I believe this to be the greatest source I have been introduced to in my personal web design journey.