A HTML5 app, on the other hand, refers to a mobile app built completely using HTML, CSS and Javascript only. HTML5 apps are web apps and they must be run using the underlying OS browser.

mPING is an app where the public can submit reports of what kind of weather is happening at their exact location by using GPS.

HTML provides the structure, content and layout, CSS adds style and design, and JavaScript adds functionality and interactivity.

jsFiddle lets developers play with the three core elements of Web development. Check out this powerful application for rapid prototyping and testing.

Being able to work comfortably on Web-related code elements -- HTML, CSS, and JavaScript -- has become an increasingly important skill for all kinds of software development projects. Web apps, ...