Picturefill: A <picture> element polyfill

For more info: see project home.

source elements using both media and srcset attributes

This markup pattern is further detailed in the original proposal by Florian Rivoal.

This syntax combines the resolution switching of srcset with picture’s ability to tailor sources to the viewport. This has a couple of major benefits over the originally-propsed picture element:

source elements using media attributes only

Does not perform any resolution switching.