Selectivizr : CSS3 pseudo-class and attribute selectors for IE 6-8
css3-mediaqueries-js : make CSS3 Media Queries work in all browsers (JavaScript library)
Photon : UI toolkit for building desktop apps with Electron.
enquire.js : A lightweight, pure JavaScript library for responding to CSS media queries.
The HTML5 Shiv : The HTML5 Shiv enables use of HTML5 sectioning elements in legacy Internet Explorer and provides basic HTML5 styling for Internet Explorer 6-9, Safari...
