Contents
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
1 | img.clip04 { |
2 | clip: rect(10px, 20px, 20px, 10px); |
3 | } |
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 |
