brightness()
CSS
function
applies a linear multiplier to the input image, making it appear brighter or darker. Its result is a
<filter-function>
.
brightness(amount)
amount
<number>
或
<percentage>
. A value under
100%
darkens the image, while a value over
100%
brightens it. A value of
0%
will create an image that is completely black, while a value of
100%
leaves the input unchanged. The lacuna value for interpolation is
1
.
brightness(0%) /* Completely black */ brightness(0.4) /* 40% brightness */ brightness(1) /* No effect */ brightness(200%) /* Double brightness */
| 规范 | 状态 |
|---|---|
|
Filter Effects Module Level 1
The definition of 'brightness()' in that specification. |
工作草案 |
<filter-function>
blur()
contrast()
drop-shadow()
grayscale()
hue-rotate()
invert()
opacity()
saturate()
sepia()