After the developer creates the repository and configures GitHub Pages, the next step is to load static web resources such as images, CSS, JavaScript libraries and HTML pages into the project.

As you continue to learn HTML, CSS and JavaScript, embrace a growth mindset. With practice and experimentation, you’ll gain confidence and develop your coding skills.

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.

If you know a little bit about HTML, CSS, and JavaScript you're already well equipped to create a Safari extension. Since Apple's documentation can seem intimidating, here's a tutorial to walk you ...