http://goo.gl/P8jrY — QRCode of this page, test results

onclick="" added to labels, inputs and anchor links. Removed it on one of these element results in less support. I'll don't track which browser need it or not.

Tests

Correct values: target, descendent, next, adjacent.

:checked selector

on checkbox

: next, adjacent.

on radio

: next, adjacent.

: next, adjacent.

:target selector

a 1 : target, descendent, next, adjacent.

a 2 : target, descendent, next, adjacent.

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