#firstname
*
p
p.intro
div, p
div p
div > p
div + p
p ~ ul
[target]
[target=_blank]
[title~=flower]
[lang|=en]
a[href^="https"]
a[href$=".pdf"]
a[href*="w3schools"]
a:active
p::after
p::before
input:checked
input:default
input:disabled
p:empty
input:enabled
p:first-child
p::first-letter
p::first-line
p:first-of-type
input:focus
:fullscreen
a:hover
input:in-range
input:indeterminate
input:invalid
p:lang(it)
p:last-child
p:last-of-type
a:link
::marker
:not(p)
p:nth-child(2)
p:nth-last-child(2)
p:nth-last-of-type(2)
p:nth-of-type(2)
p:only-of-type
p:only-child
input:optional
input:out-of-range
input:read-only
input:read-write
input:required
:root
::selection
#news:target
input:valid
a:visited