CSS - orientation
The orientation
CSS descriptor controls the orientation of a document defined by @viewport
.
Syntax
CSS
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/* Keyword values */ orientation: auto; orientation: portrait; orientation: landscape;
Values
auto
- The user agent will set the document's orientation automatically, typically based on the device's orientation as determined by an accelerometer (if the device has such a hardware sensor), although there is often a user-controlled, OS-level "Lock orientation" setting that will trump the accelerometer reading.
portrait
- The document should be locked into portrait orientation.
landscape
- The document should be locked into landscape orientation.
Formal syntax
CSS
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auto <a href="css/value_definition_syntax#single_bar" title="Single bar">|</a> portrait <a href="css/value_definition_syntax#single_bar" title="Single bar">|</a> landscape
Description
The orientation
CSS descriptor controls the orientation of a document defined by @viewport
.
For a UA/device where the orientation is changed upon tilting the device, an author can use this descriptor to inhibit the orientation change.
Related at-rule | @viewport |
---|---|
Initial value | auto |
Percentages | refer to the size of bounding box |
Media | visual, continuous |
Computed value | as specified |
Canonical order | the unique non-ambiguous order defined by the formal grammar |
Browser Compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support | Not supported | Not supported | 10 -ms | Not supported | ? |
Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|
Basic support | ? | ? | ? | ? | 8 -o | ? |
Specifications
Specification | Status | Comment |
---|---|---|
CSS Device Adaptation The definition of '"orientation" descriptor' in that specification. |
Working Draft | Initial definition |
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/css/@viewport/orientation