Summary
The speak-as
descriptor specifies how a counter symbol constructed with a given @counter-style
will be represented in the spoken form. For example, an author can specify a counter symbol to be either spoken as its numerical value or just represented with an audio cue.
The value of the speak-as descriptor can be auto, bullets, numbers, words, spell-out, or the name of another counter style.
Related at-rule | @counter-style |
---|---|
Initial value | auto |
Media | all |
Computed value | as specified |
Canonical order | the unique non-ambiguous order defined by the formal grammar |
Syntax
/* Keyword values */ speak-as: auto; speak-as: bullets; speak-as: numbers; speak-as: words; speak-as: spell-out; /* @counter-style name value */ speak-as: <counter-style-name>;
Values
- auto
- If the value of
speak-as
is specified as auto, then the effective value ofspeak-as
will be determined based on the value of thesystem
descriptor. If the value ofsystem
is alphabetic, then the effective value ofspeak-as
will be spell-out. Ifsystem
is cyclic, the effective value ofspeak-as
will be bullets. Ifsystem
is extends, the value ofspeak-as
will be the same as ifspeak-as
: auto is specified on the extended style. For all other cases, the specifying auto has the same effect as specifyingspeak-as
: numbers. - bullets
- A phrase or an audio cue defined by the user agent for representing an unordered list item will be read out.
- numbers
- The numerical value of the counter will be read out in the document language.
- words
- The user agent will generate a counter value as normal and read it out as a word in the document language.
- spell-out
- The user agent will generate a counter representation as normal and would read it out letter by letter. If the user agent doesn't know how to read out a partiular counter symbol, the user agent might read it out as if the value of
speak-as
was numbers. - <counter-style-name>
- If the name of another counter style is specified, the counter will be spoken out in the form specified in that counter style, kind of like specifying the
fallback
descriptor. If the specified style does not exist, speak-as descriptor assumes the value auto.
Formal syntax
auto | bullets | numbers | words | spell-out | <counter-style-name>where
<counter-style-name> = <custom-ident>
Example
HTML
<ul class="list"> <li>One</li> <li>Two</li> <li>Three</li> <li>Four</li> <li>Five</li> </ul>
CSS
@counter-style speak-as-example { system: fixed; symbols: ; suffix: " "; speak-as: numbers; } .list { list-style: speak-as-example; }
Result
Specifications
Specification | Status | Comment |
---|---|---|
CSS Counter Styles Level 3 The definition of 'speak-as' in that specification. |
Candidate Recommendation | Initial definition. |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support | No support | 33 (33) | No support | No support | No support |
Feature | Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|
Basic support | No support | 33 (33) | No support | No support | No support |
See also
list-style
,list-style-image
,list-style-position
symbols()
, the functional notation creating anonymous counter styles.