Back in 2012, Mozilla launched Thimble, an online code editor for teaching the basics of HTML, CSS and JavaScript. Over time, though, things got pretty quiet around the project as other browser ...

HTML, CSS, & JavaScript All-in-One For Dummies ($39.99 Value) FREE – Expires 5/20 Offensive Security Using Python: A hands-on guide ($39.99 Value) FREE – Expires 5/21 The Ultimate Linux Newbie ...

WebStorm is the JavaScript IDE I recommend for serious JavaScript/HTML5/CSS developers who want a full-featured IDE and either qualify for a free copy or have the budget for a license.

It allows you to edit PHP, HTML, CSS and JavaScript files, and it highlights the syntax and provides hints for tags, functions and their parameters. This editor deals with files that contain mixed ...

Unlike the previous beginner course, this one covers HTML5, CSS3, the Twitter Bootstrap CSS Framework and JavaScript, which the instructor describes as the programming language for the web.

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.