HTML <a> media Atrybut
Przykład
Link z atrybutem media:
<a href="att_a_media.asp?output=print"
media="print and (resolution:300dpi)">
Open media attribute page for print.</a>
Definicja i użycie
Atrybut określa, dla media
jakich nośników lub urządzeń zoptymalizowany jest połączony dokument.
Ten atrybut jest używany do określenia, że docelowy adres URL jest przeznaczony dla specjalnych urządzeń (takich jak iPhone), mowy lub mediów drukowanych.
Ten atrybut może przyjmować kilka wartości.
Używany tylko wtedy, gdy href
atrybut jest obecny.
Uwaga: ten atrybut ma charakter wyłącznie doradczy.
Obsługa przeglądarki
Element | |||||
---|---|---|---|---|---|
media | Yes | Yes | Yes | Yes | Yes |
Składnia
<a media="value">
Możliwi operatorzy
Value | Description |
---|---|
and | Specifies an AND operator |
not | Specifies a NOT operator |
, | Specifies an OR operator |
Urządzenia
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 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) |
Wartości
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)" |
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