Attributo multimediale <a> HTML

❮ Tag HTML <a>

Esempio

Un collegamento con un attributo multimediale:

<a href="att_a_media.asp?output=print"
media="print and (resolution:300dpi)">
Open media attribute page for print.</a>

Definizione e utilizzo

L' mediaattributo specifica per quale supporto o dispositivo è ottimizzato il documento collegato.

Questo attributo viene utilizzato per specificare che l'URL di destinazione è progettato per dispositivi speciali (come iPhone), voce o supporti di stampa.

Questo attributo può accettare diversi valori.

Utilizzato solo se l' hrefattributo è presente.

Nota: questo attributo è puramente consultivo.


Supporto browser

Element
media Yes Yes Yes Yes Yes

Sintassi

<a media="value">


Possibili operatori

Value Description
and Specifies an AND operator
not Specifies a NOT operator
, Specifies an OR operator

Dispositivi

Value Description
all Default. Suitable for all devices
aural Speech synthesizers
braille Braille feedback devices
handheld Handheld devices (small screen, limited bandwidth)
projection Projectors
print Print preview mode/printed pages
screen Computer screens
tty Teletypes and similar media using a fixed-pitch character grid
tv Television type devices (low resolution, limited scroll ability)

I valori

Value Description
width Specifies the width of the targeted display area.
"min-" and "max-" prefixes can be used.
Example: media="screen and (min-width:500px)"
height Specifies the height of the  targeted display area.
"min-" and "max-" prefixes can be used.
Example: media="screen and (max-height:700px)"
device-width Specifies the width of the target display/paper.
"min-" and "max-" prefixes can be used.
Example: media="screen and (device-width:500px)"
device-height Specifies the height of the target display/paper.
"min-" and "max-" prefixes can be used.
Example: media="screen and (device-height:500px)"
orientation Specifies the orientation of the target display/paper.
Possible values: "portrait" or "landscape"
Example: media="all and (orientation: landscape)"
aspect-ratio Specifies the width/height ratio of the targeted display area.
"min-" and "max-" prefixes can be used.
Example: media="screen and (aspect-ratio:16/9)"
device-aspect-ratio Specifies the device-width/device-height ratio of the target display/paper.
"min-" and "max-" prefixes can be used.
Example: media="screen and (aspect-ratio:16/9)"
color Specifies the bits per color of target display.
"min-" and "max-" prefixes can be used.
Example: media="screen and (color:3)"
color-index Specifies the number of colors the target display can handle.
"min-" and "max-" prefixes can be used.
Example: media="screen and (min-color-index:256)"
monochrome Specifies the bits per pixel in a monochrome frame buffer.
"min-" and "max-" prefixes can be used.
Example: media="screen and (monochrome:2)"
resolution Specifies the pixel density (dpi or dpcm) of the target display/paper.
"min-" and "max-" prefixes can be used.
Example: media="print and (resolution:300dpi)"
scan Specifies scanning method of a tv display.
Possible values are "progressive" and "interlace".
Example: media="tv and (scan:interlace)"
grid Specifies if the output device is grid or bitmap.
Possible values are "1" for grid, and "0" otherwise.
Example: media="handheld and (grid:1)"

❮ Tag HTML <a>