Dive into the world of CSS pseudo-elements! Learn how to use ::before and ::after to add stylistic content without altering ...

Output: The results of executing the CSS, HTML, and JavaScript entered into the sections of the page. Figure A shows jsFiddle loaded in Internet Explorer 9 with empty code panes.

Codecademy offers some interactive lessons on HTML and CSS for free. A paid Codecademy Pro subscription – at $19.99 per month, billed yearly – gives you access to exclusive content, step-by ...