CSS Selectors support in Opera Presto 2.7

W3C references

W3C CSS Selectors Level 2.1

W3C CSS Selectors Level 3

Opera articles

CSS3 attribute selectors

Styling Forms with Attribute Selectors - Part 2: adding in some CSS3

Zebra striping tables with CSS3 (nth-child)

There are three levels of CSS, Levels 1, 2, and 3. CSS Level 2 has a revision under development, referred to as "CSS Level 2, Revision 1" or "CSS 2.1" for short. CSS Level 3 modules are in different stages of development.

The following table describes CSS Selectors support in Opera Presto. Each selector is hyperlinked to its respective place in the online W3C CSS Selector modules.

Selector	Level	Support
Adjacent Sibling selector (E1 + E2)	CSS 2	Yes
Attribute and attribute selectors [att] [att=val] [att~=val] [att|=val]	CSS 2	Yes
Attribute selectors with namespace (|attr)	CSS 3	Yes
Attribute start selector [att^=val]	CSS 3	Yes
Attribute end selector [att$=val]	CSS 3	Yes
Attribute contains selector [att*=val]	CSS 3	Yes
Child selector ( > )	CSS 2	Yes
Class selectors ( . )	CSS 1	Yes
Descendant selectors (   )	CSS 1	Yes
ID selectors ( # )	CSS 1	Yes
Universal Selector ( * )	CSS 2	Yes
Type selectors ( h1 )	CSS 1	Yes
Type selectors with namespace ( ns|E )	CSS 3	Yes
Negation pseudo-class :not()	CSS 3	Yes
:active	CSS 1/2	Yes
::after, :after	CSS 2	Yes
::before, :before	CSS 2	Yes
:checked	CSS 3	Yes
:default	CSS 3	Yes
:disabled	CSS 3	Yes
:empty	CSS 3	Yes
:enabled	CSS 3	Yes
:first	CSS 3	Yes
:first-child	CSS 2	Yes
::first-letter, :first-letter	CSS 1	Yes
::first-line, :first-line	CSS 1	Yes
:first-of-type	CSS 3	Yes
:focus	CSS 2	Yes
:hover	CSS 2	Yes
:in-range	CSS 3	Yes
:invalid	CSS 3	Yes
:lang()	CSS 2	Yes
:left	CSS 3	Yes
:link	CSS 1/2	Yes
:last-child	CSS 3	Yes
:last-of-type	CSS 3	Yes
:nth-child()	CSS 3	Yes
:nth-last-child()	CSS 3	Yes
:nth-of-type()	CSS 3	Yes
:nth-last-of-type()	CSS 3	Yes
:only-child	CSS 3	Yes
:only-of-type	CSS 3	Yes
:optional	CSS 3	Yes
:out-of-range	CSS 3	Yes
:read-only	CSS 3	Yes
:read-write	CSS 3	Yes
:required	CSS 3	Yes
:right	CSS 3	Yes
:root	CSS 3	Yes
::selection	CSS 3	Yes
:target	CSS 3	Yes
:valid	CSS 3	Yes
:visited	CSS 1/2	Yes