Rejoice Sublime Text* users, you can now automate Intel® XDK tasks directly from Sublime Text. With the new plugin for the Intel XDK, you can edit your code in Sublime Text and launch the editor ...

With its custom interface and text-editor sensibilities, Sublime Text 2 offers a polished editing experience that rewards familiarity with comfort and speed.

These are also small text documents, although they end in .css, and you need to add code to link them to your HTML pages. How to learn HTML, CSS and web design on your Mac: What are HTML and CSS?