contrast()
CSS
function
adjusts the contrast of the input image. Its result is a
<filter-function>
.
contrast(amount)
amount
<number>
或
<percentage>
. A value under
100%
decreases the contrast, while a value over
100%
increases it. A value of
0%
will create an image that is completely gray, while a value of
100%
leaves the input unchanged. The lacuna value for interpolation is
1
.
contrast(0) /* Completely gray */ contrast(65%) /* 65% contrast */ contrast(1) /* No effect */ contrast(200%) /* Double contrast */
| 规范 | 状态 |
|---|---|
|
Filter Effects Module Level 1
The definition of 'contrast()' in that specification. |
工作草案 |
<filter-function>
blur()
brightness()
drop-shadow()
grayscale()
hue-rotate()
invert()
opacity()
saturate()
sepia()