This tutorial has taught you how to create style sheets to control the style and layout of multiple web sites at once.
    You have learned how to use CSS to add backgrounds, format text, add and format borders, and specify padding and margins of elements.
    You have also learned how to position an element, control the visibility and size of an element, set the shape of an element, place an element behind another, and to add special effects to some selectors, like links.
    For more information on CSS, please take a look at our CSS examples and our CSS reference .

Now You Know CSS, What's Next?

The next step is to learn XHTML and JavaScript .

XHTML
    XHTML is the "new" HTML. The latest HTML recommendation is HTML 4.01. This is the last and final HTML version.
   HTML will be replaced by XHTML, which is a stricter and cleaner version of HTML. 

JavaScript
     JavaScript can make your web site more dynamic.
     A static web site is nice when you just want to show flat content, but a dynamic web site can react to events and allow user interaction.
     JavaScript is the most popular scripting language on the internet and it works with all major browsers.
     If you want to learn more about JavaScript, please visit our JavaScript tutorial .

CSS Dimension

CSS Classification

CSS Positioning

CSS Pseudo-class

CSS Pseudo-element 

CSS Image Gallery

CSS Image Opacity

CSS Media Types

CSS Don't 

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