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/* syntax:
The amount of the conversion, specified as a <number> or a <percentage>.
A value under 100% desaturates the image, while a value over 100%
super-saturates it. A value of 0% is completely unsaturated, while
a value of 100% leaves the input unchanged. The lacuna value for
interpolation is 1. */
saturate(amount)
/* examples */
filter: saturate(1);
filter: saturate(2);
filter: saturate(50%);
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