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Less.less
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Less.less
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// 4.1 https://lesscss.org/
when and not
// https://lesscss.org/features/#extend-feature
:extend()
// https://lesscss.org/features/#mixins-feature-mixins-parametric-feature
arguments
rest
// https://lesscss.org/features/#import-atrules-feature
@import ;
reference inline less css once multiple optional
@plugin ;
// https://lesscss.org/functions/
// Logical Functions
if(condition, value1, value2)
boolean(condition)
// String Functions
escape("")
replace(string, pattern, replacement, flags)
// List Functions
length(list)
extract(list, index)
range(start, end, step)
each(list, rules)
// Math Functions
ceil(number)
floor(number)
percentage(number)
round(number)
sqrt(number)
abs(number)
sin(number)
asin(number)
cos(number)
acos(number)
tan(number)
atan(number)
pi(number)
pow(base, exponent)
mod(first, second)
min(values)
max(values)
// Type Functions
isnumber(value)
isstring(value)
iscolor(value)
iskeyword(value)
isurl(value)
ispixel(value)
isem(value)
ispercentage(value)
isunit(value)
isruleset(value)
isdefined(value)
// Misc Functions
color(value)
image-size(file)
image-width(file)
image-height(file)
convert(number, unit)
data-uri(mimetype, url)
default()
unit(dimension, unit)
get-unit(number)
svg-gradient(direction, color)
// Color Definition Functions
rgb(red, green, blue)
rgba(red, green, blue, alpha)
argb(color)
hsl(hue, saturation, lightness)
hsla(hue, saturation, lightness, alpha)
hsv(hue, saturation, value)
hsva(hue, saturation, value, alpha)
// Color Channel Functions
hue(color)
saturation(color)
lightness(color)
hsvhue(color)
hsvsaturation(color)
hsvvalue(color)
red(color)
green(color)
blue(color)
alpha(color)
luma(color)
luminance(color)
// Color Operation Functions
saturate(color, amount, method)
desaturate(color, amount, method)
lighten(color, amount, method)
darken(color, amount, method)
fadein(color, amount, method)
fadeout(color, amount, method)
fade(color, amount)
spin(color, angle)
mix(color1, color2, weight)
tint(color, weight)
shade(color, weight)
greyscale(color)
contrast(color, dark, light, threshold)
// Color Blending Functions
multiply(color1, color2)
screen(color1, color2)
overlay(color1, color2)
softlight(color1, color2)
hardlight(color1, color2)
difference(color1, color2)
exclusion(color1, color2)
average(color1, color2)
negation(color1, color2)