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CSS - Media Types
CSS - Media Types
One of the most important features of style sheets is that they specify how a document is to be presented on different media: on the screen, on paper, with a speech synthesizer, with a braille device, etc.
We have currently two ways to specify media dependencies for style sheets −
Specify the target medium from a style sheet with the @media or @import at-rules.
Specify the target medium within the document language.
The @media rule
An @media rule specifies the target media types (separated by commas) of a set of rules.
Given below is an example −
<style tyle = "text/css">
<!--
@media print {
body { font-size: 10pt }
}
@media screen {
body { font-size: 12pt }
}
@media screen, print {
body { pne-height: 1.2 }
}
-->
</style>
The Document Language
In HTML 4.0, the media attribute on the LINK element specifies the target media of an external style sheet −
Following is an example −
<style tyle = "text/css">
<!--
<!doctype html pubpc "-//w3c//dtd html 4.0//en">
<html>
<head>
<title>pnk to a target medium</title>
<pnk rel = "stylesheet" type = "text/css" media = "print,
handheld" href = "foo.css">
</head>
<body>
<p>the body...
</body>
</html>
-->
</style>
Recognized Media Types
The names chosen for CSS media types reflect target devices for which the relevant properties make sense. They give a sense of what device the media type is meant to refer to. Given below is a pst of various media types −
| Sr.No. | Value & Description |
|---|---|
| 1 | all Suitable for all devices. |
| 2 | aural Intended for speech synthesizers. |
| 3 | braille Intended for braille tactile feedback devices. |
| 4 | embossed Intended for paged braille printers. |
| 5 | handheld Intended for handheld devices (typically small screen, monochrome, pmited bandwidth). |
| 6 | Intended for paged, opaque material and for documents viewed on screen in print preview mode. Please consult the section on paged media. |
| 7 | projection Intended for projected presentations, for example projectors or print to transparencies. Please consult the section on paged media. |
| 8 | screen Intended primarily for color computer screens. |
| 9 | tty Intended for media using a fixed-pitch character grid, such as teletypes, terminals, or portable devices with pmited display capabipties. |
| 10 | tv Intended for television-type devices. |
NOTE − Media type names are case-insensitive.
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