Definition and Usage
The <shape> CSS data type denotes the specific form of a region. This region is used to define on which part of an element some properties like clip do apply.
In the current specification, a <shape>, though designed to denote any kind of form, can only represents a rectangular region, defined using the rect() functional notation.
The rect()
function
The rect()
functional notation produces a region in the form of a rectangle.
Syntax
rect(top, right, bottom, left)
where:
- top
- Is a
<length>
representing the offset for the top of the rectangle relative to the top border of the element's box.
- right
- Is a
<length>
representing the offset for the right of the rectangle relative to the left border of the element's box.
- bottom
- Is a
<length>
representing the offset for the bottom of the rectangle relative to the top border of the element's box.
- left
- Is a
<length>
representing the offset for the left of the rectangle relative to the left border of the element's box.
Interpolation
Values of the <shape>
CSS data type which are rectangles can be interpolated in order to allow animations. In that case they are interpolated over their top
, right
, bottom
and left
component, each treated as a real, floating-point number. The speed of the interpolation is determined by the timing function associated with the animation.
Examples
img.clip04 { clip: rect(10px, 20px, 20px, 10px); }
Compatibility
Desktop browsers
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support | 1.0 | 1.0 (1.7 or earlier) | 5.5[*] | 9.5 | 1.3 |
Mobile browsers
Feature | Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|
Basic support | NA | NA | NA | NA | NA |