HTML and CSS Reference
In-Depth Information
Aural Property
Allowed Values
Description
Example(s)
play-during
url(
soundfile
) [mix |
repeat] | auto | none |
inherit
Defines a sound that should be
played in the background while
an element is being spoken.
A value of
none
suppresses
any playing sound that may
have been inherited. A value
of
mix
can be set to indicate
the playing sound may mix with
inherited sounds; otherwise,
the playing sound replaces any
currently playing sounds. When
a value of
repeat
is present,
the sound will repeat if the time
of reading is longer than the
background sound.
play-during: url(holdmusic.wav)
mix repeat;}
richness
number
| inherit
Specifies the richness or power
of a speaking voice in a range
from
0
to
100
. The higher the
value, the more powerful the
voice.
.boom {richness: 80;}
speak
normal | none | spell-
out | inherit
Defines if text should be
spoken or not. A value of
none
suppresses aural playback. A
value of
normal
is standard
reading, and
spell-out
has
individual letters spoken one at
a time, which is generally only
appropriate when spelling out
acronyms or abbreviations.
.dictate {speak: spell-out;}
.silent {speak: none;}
Specifies if, when reading
tables, cell headers should be
spoken every time or only once
when the table is started.
speak-
header
once | always |
inherit
table th {speak-header: once;}
T
ABLE
5-10
CSS-HTML Size Relationships
