atrasatti/picturefill
A Responsive Images approach that you can use today!
kramdown is yet-another-markdown-parser but fast, pure Ruby, using a strict syntax definition and supporting several common extensions.
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A Responsive Images approach that you can use today!
A collection of examples around the Web Perf WG API's
Add to home screen popup for iPhone/iPad
An Experiment with Mobile-First Images that Scale Responsively & Responsibly