-moz-image-region
-moz-image-region
Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
For certain XUL elements and pseudo-elements that use an image from the list-style-image property, this property specifies a region of the image that is used in place of the whole image. This allows elements to use different pieces of the same image to improve performance.
The syntax is similar to the clip property. All four values are relative to the upper left corner of the image.
| Initial value | auto |
|---|---|
| Applies to | XUL <image> elements and :-moz-tree-image, :-moz-tree-twisty, and :-moz-tree-checkbox pseudo-elements. Note: -moz-image-region only works with <image> elements where the icon is specified using list-style-image. It will not work with XUL <image src="url" />. |
| Inherited | yes |
| Media | visual |
| Computed value | as specified |
| Animation type | discrete |
| Canonical order | the unique non-ambiguous order defined by the formal grammar |
Note: For a system that works on any background, see -moz-image-rect().
Syntax
/* Keyword value */ -moz-image-region: auto; /* <shape> value */ -moz-image-region: rect(0, 8px, 4px, 4px); /* Global values */ -moz-image-region: inherit; -moz-image-region: initial; -moz-image-region: unset;
Values
auto- Automatically defines the region of the image to use.
<shape>- A shape defining the part of the image to use. The
rect()function defines a rectangle to use as shape. Its parameters define the top, right, bottom, and left offsets of the edges of the image, in this order.
Formal syntax
<shape>where
<shape> = rect(<top>, <right>, <bottom>, <left>)
Examples
#example-button {
/* display only the 4x4 area from the top left of this image */
list-style-image: url("chrome://example/skin/example.png");
-moz-image-region: rect(0px, 4px, 4px, 0px);
}
#example-button:hover {
/* use the 4x4 area to the right of the first for the hovered button */
-moz-image-region: rect(0px, 8px, 4px, 4px);
} Specifications
Not part of any specification.
Browser compatibility
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | No support | No support | (Yes)-moz | No support | No support | No support |
| Feature | Android | Edge | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | No support | No support | (Yes)-moz | No support | No support | No support |
See also
© 2005–2017 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/CSS/-moz-image-region
