Quark is your basic building block for creating beautiful, responsive custom themes. It's not a convoluted or confusing framework that's hard to learn or even harder to modify. It's a simple and elegant starter theme built on HTML5 & CSS3. Its base is a responsive, 12 column grid. It incorporates custom Theme Options that are easy to modify, a set of common templates, support for WordPress Post Formats and the gorgeous, retina friendly Font Awesome icon font.