scale_color($color, [$red], [$green], [$blue], [$saturation], [$lightness], [$alpha]) Fluidly scales one or more properties

@error The @error directive throws the value of a SassScript expression as a fatal error, including a nice stack

lightness($color) Returns the lightness component of a color. See

unique_id Returns a unique CSS identifier. The identifier is returned as an unquoted string. The identifier returned is only

map_keys($map) Returns a list of all keys in a map.

@import Sass extends the CSS @import rule to allow it to import SCSS and Sass files. All imported SCSS and Sass files

Interpolation: #{} You can also use SassScript variables in selectors and property names using #{} interpolation

map_values($map) Returns a list of all values in a map. This list may include duplicate values, if multiple keys have the

Referencing Parent Selectors: & Sometimes it’s useful to use a nested rule’s parent selector in other ways than the default

ceil($number) Rounds a number up to the next whole number.