CSS Master

Table 7.3. Discrete media feature types, descriptions, and legitimate values

for each

Property Description Acceptable values

Whether the device is grid (such Boolean (test using (grid))

as a teletype terminal or phone

grid

with a single fixed font) or

bitmap.

Ability of the primary input none | on-demand | hover

mechanism to have a hover state

as determined by the user agent

hover

Ability of any connected input none | on-demand | hover

mechanism to have a hover state

as determined by the user agent

any-hover

Whether the colors have been none | inverted

inverted by the user agent or

operating system

inverted-colors

Queries the ambient light level dim | normal | washed

of the environment around the

device

light-level

none | scroll |

optional-paged | paged

Describes the behavior of the

device or browser when content

overflows the initial containing

overflow-block

block or viewport along the

block-axis

Describes the behavior of the none | scroll

device or browser when content

overflow-inline

overflows the initial containing

block or viewport in the

inline-axis

Describes behavior for whatever portrait | landscape

is larger out of width or height.

orientation

When the width is greater than

height, the orientation is

landscape. When the inverse

is true, the orientation is

portrait

Applying CSS Conditionally 285