Resize the browser to see the img.currentsrc change as the different <picture> media queries take effect.
The current <img> src is ''
Thanks to Google Chrome Team for the sample page this was derived from. Find it at http://googlechrome.github.io/samples/picture-element/
The source for the image is:
<picture> <source media="(min-width: 650px)" srcset="images/kitten-large.png"> <source media="(min-width: 465px)" srcset="images/kitten-medium.png"> <!-- img tag for browsers that do not support picture element --> <img src="images/kitten-small.png" alt="a cute kitten" id="picimg"> </picture>