The and any-hover media features are identical to the and media features, but they correspond to the union of capabilities of all the pointing devices available to the user. In the case of , more than one of the values can match, if different pointing devices have different characteristics.

]]> The aspect-ratio media feature is defined as the ratio of the value of the media feature to the value of the media feature.

]]> The color media feature describes the number of bits per color component of the output device. If the device is not a color device, the value is zero.

]]> The color-gamut media feature describes the approximate range of colors that are supported by the UA and output device. That is, if the UA receives content with colors in the specified space it can cause the output device to render the appropriate color, or something appropriately close enough.

]]> The color-index media feature describes the number of entries in the color lookup table of the output device. If the device does not use a color lookup table, the value is zero.

]]> The 'device-aspect-ratio media feature is defined as the ratio of the value of the media feature to the value of the 'device-height media feature.

]]> The device-height media feature describes the height of the rendering surface of the output device. For continuous media, this is the height of the Web-exposed screen area. For paged media, this is the height of the page sheet size.

]]> The device-width media feature describes the width of the rendering surface of the output device. For continuous media, this is the width of the Web-exposed screen area. For paged media, this is the width of the page sheet size.

]]> The grid media feature is used to query whether the output device is grid or bitmap. If the output device is grid-based (e.g., a “tty” terminal, or a phone display with only one fixed font), the value will be 1. Otherwise, the value will be 0.

]]> The height media feature describes the height of the targeted display area of the output device. For continuous media, this is the height of the viewport including the size of a rendered scroll bar (if any). For paged media, this is the height of the page box.

]]> The monochrome media feature describes the number of bits per pixel in a monochrome frame buffer. If the device is not a monochrome device, the output device value will be 0.

]]> The overflow-block media feature describes the behavior of the device when content overflows the initial containing block in the block axis.

]]> The overflow-inline media feature describes the behavior of the device when content overflows the initial containing block in the inline axis.

]]> The resolution media feature describes the resolution of the output device, i.e. the density of the pixels, taking into account the page zoom but assuming a pinch zoom of 1.0.

]]> The scan media feature describes the scanning process of some output devices.

]]> The update media feature is used to query the ability of the output device to modify the apearance of content once it has been rendered. It accepts the following values:

]]> The width media feature describes the width of the targeted display area of the output device. For continuous media, this is the width of the viewport (as described by CSS2, section 9.1.1 [CSS21]) including the size of a rendered scroll bar (if any). For paged media, this is the width of the page box (as described by CSS2, section 13.2 [CSS21]).

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