Some "advanced" selectors test

:first-child

:last-child

:nth-child()

:lang()

:not()

:empty+

:first-of-type

:root

html:first-child

*+html

~

[class|="x-x"]

[class*=""]

[class^=""]

[class$=""]

:not([class*=""])

:not([class^=""])

:not([class$=""])

id case insens.

class case insens.

:not(:root:root)

media query

inp dis null

inp dis true

inp dis disa

name space

User Agent:

Related: Minimal set of css hacks, CSS browsers separation.