#HTML Selects
JQuery mobile http://jquerymobile.com/
Sencha touch http://www.sencha.com/products/touch/
BootStrap http://twitter.github.com/bootstrap/
Sleek, intuitive, and powerful front-end framework for faster and easier web development.
html5boilerplate.com http://html5boilerplate.com/
The web’s most popular front-end template
Zurb Foundation http://foundation.zurb.com/
The most advanced responsive front-end framework in the world.
Skeleton http://www.getskeleton.com/
A Beautiful Boilerplate for Responsive, Mobile-Friendly Development
HTML KickStart http://www.99lime.com/
Ultra–Lean HTML5, CSS, & JS Building Blocks for Rapid Website Production
5 most popular HTML5 responsive frameworks
10 Essential HTML5 Frameworks