Respond 
 Media Query Polyfill
 A lightweight polyfill to enable CSS3 Media Queries in older browsers
A fast & lightweight polyfill for min/max-width CSS3 Media Queries (for IE 6-8, and more)
11k stars
 541 watching
 3k forks
 
Language: JavaScript 
last commit: over 7 years ago 
Linked from   1 awesome list  
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