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 { line-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 public "-//w3c//dtd html 4.0//en"> <html> <head> <title>link to a target medium</title> <link 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 list of various media types −| Value | Description |
|---|---|
| all | Suitable for all devices. |
| aural | Intended for speech synthesizers. |
| braille | Intended for braille tactile feedback devices. |
| embossed | Intended for paged braille printers. |
| handheld | Intended for handheld devices (typically small screen, monochrome, limited bandwidth). |
| Intended for paged, opaque material and for documents viewed on screen in print preview mode. Please consult the section on paged media. | |
| projection | Intended for projected presentations, for example projectors or print to transparencies. Please consult the section on paged media. |
| screen | Intended primarily for color computer screens. |
| tty | Intended for media using a fixed-pitch character grid, such as teletypes, terminals, or portable devices with limited display capabilities. |
| tv | Intended for television-type devices. |
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