HTML -Medienattribut <a>
Beispiel
Ein Link mit einem Medienattribut:
<a href="att_a_media.asp?output=print"
media="print and (resolution:300dpi)">
Open media attribute page for print.</a>
Definition und Verwendung
Das media
Attribut gibt an, für welche Medien oder Geräte das verlinkte Dokument optimiert ist.
Dieses Attribut wird verwendet, um anzugeben, dass die Ziel-URL für spezielle Geräte (z. B. iPhone), Sprache oder Printmedien ausgelegt ist.
Dieses Attribut kann mehrere Werte annehmen.
Wird nur verwendet, wenn das href
Attribut vorhanden ist.
Hinweis: Dieses Attribut ist rein beratend.
Browser-Unterstützung
Element | |||||
---|---|---|---|---|---|
media | Yes | Yes | Yes | Yes | Yes |
Syntax
<a media="value">
Mögliche Operatoren
Value | Description |
---|---|
and | Specifies an AND operator |
not | Specifies a NOT operator |
, | Specifies an OR operator |
Geräte
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) |
Werte
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)" |
❮ HTML <a>-Tag