Finally, true responsive images are becoming a reality on the web — in pure HTML, without convoluted hacks. The element and a couple of new attributes for the element are behind a flag in Chromium 37 and shipping in Chromium 38 (so coming soon in Opera), in Firefox Nightly and are being implemented in WebKit (although it remains to be seen if Apple will ship it in the next version of Safari).
So far, we’ve seen how we can target elements based on their attributes and states. CSS3 also enables us to target elements based simply on their location in the markup. These selectors are grouped under the heading structural pseudo-classes.
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