Jquery Image Gallery with CSS3 Transitions – Photobox

Photobox is a very light weight CSS3 photo and video gallery plugin with jquery. Which uses a lightweight image gallery and a  modal window script which uses only CSS3 for silky-smooth animations and transitions . Photobox utilizes GPU rending, which can be completely controlled and themed directly from the CSS. Supports: Firefox, Chrome and IE8+ Download : Photobox Features

Gumby – A Responsive HTML5 CSS3 Framework With UI Tool Kit

Gumby is a responsive and 960px column grid based CSS framework. Gumby is easy to customize for any resolution with a little effort. It has a very nice fluid-fixed layout self-optimizes the content for desktop, tablet and mobile resolutions and there is support for nested grids. Like Twitter Bootstrap, Gumby comes with  a web UI