Beautiful, Free & Responsive HTML5 Templates
HTML5 Up! is a website that creates and shares very good-looking and free HTML5-CSS3 templates.
All the templates have responsive layouts (down to mobile) (uses Skel.js) and they are compatible with all major browsers.
There are already 10+ templates where new ones are added within time and they can be used freely under the CCA license for both personal or commercial projects.