picture element is a markup pattern that allows developers to declare multiple sources for
an image. By using media queries, it gives developers control as to when and if those
images are presented to the user.
srcset attribute is an extension to the existing
img tag that
provides some of the functionality of the
picture element. It uses a more concise syntax,
part of which can be used by the
The Use Cases and Requirements document outlines the goals, objectives, and potential issues
for end users that must be solved by the
srcset extension specifications.
Where can I learn more?
The members of the RICG have put together a number of demos for the
srcset elements. The demos on this page work in any modern browser, but if you want to see the real deal grab our Chromium build.