Polymer – A New Type of Library for the Web

Web Components usher in a new era of web development based on encapsulated and interoperable custom elements that extend HTML itself. Built atop these new standards, Polymer makes it easier and faster to create anything from a button to a complete application across desktop, mobile, and beyond.

Polymer brings an implementation of material design to the web. The paper elements range from controls to effects and user interaction. Designer is a drag and drop tool for prototyping apps using Polymer. You can save your experiments as Github gists.

Requirements: –
Demo: http://www.polymer-project.org/
License: BSD License