All Themes Package
Quasar - Free One Page HTML Bootstrap Template
Quasar is a beautiful multi purpose one page parallax responsive template that you can download for free here.
Layana - Free HTML Bootstrap Template
Wow CSS Framework - built for Developers
The framework is packed with essential starter elements only, a basic grid, basic buttons, basic menu (of course, all elements are responsive), Font Awesome integration, Google Font integration and you do the rest.
Retro Doe - Free Personal Template
Retro Doe is an HTML personal template, suitable for freelancers.