1. W3Schools –
W3Schools is a great website that offers tutorials from HTML to PHP and you can be sure that everything you read is up to standards since the site is maintained by the W3C, responsible for the web standards of today.
The CSS lessons are pretty detailed and will take you through most of what you need to know, but since this is more of a technical page you will see less examples than elsewhere and the examples they do have are a bit constrained. If you already know some CSS though this is a great reference source. This site can also teach you some other programming languages at large.
2. CSS BASICS
Well this site is just known for learning CSS in deep from basics to a master. Although you can practice your skills with this site example corner. CSS Basics is an award winning website on the internet ever especially in Beginner CSS classes etc.
3. HTML Dog
The Best Practice Guide To learn XHTML and CSS in 2012. A handful of articles expand on the tutorials, going into a few more specific areas and a bit more detail. It offers the Bare-bone examples complement the tutorials, references, and articles, and should help you to grasp how bits of HTML and CSS work a bit better by seeing them in action.
Part of the Envato Network, you will find Tuts+ to deliver the goods. This site has great content and you can purchase specific tutorials for what ever you need. From HTML to CSS to jQuery, this website has tons of info that is extremely cheap. Nearly every tutorial has a video, script, and source files for you to use and learn. You will need to purchase credits for this site to claim certain tutorials, but as I mentioned, they deliver high quality content that worth every penny.
Tizag is my favourite website for learning PHP and I recommend beginners to start learning the PHP language and other web development tools from Tizag. And this is the right place especially if you like to learn only the basics of PHP.
Some other Useful Websites/references for learning HTML/CSS Online:
6. webdesign.about.com: One of the most popular site to About.com which teaches you HTML and CSS online for free.This site has too many tutorials related to it.
7. davesite.com :One of the oldest website to learn html and css, dave founded it 15 years before when the web was just started and it has some cool resources on html and css.
9. htmlcodetutorial.com:This website goal is to provide the most helpful and complete guide to creating web pages.You can start learning html right away and more.
That’s it Keep Learning always…