index($list, $value) Returns the position of a value within a list. If the value isn’t found, returns null instead

Pattern: :only-of-type   Definition: The :only-of

Placeholder Selectors: %foo Sass supports a special type of selector called a “placeholder selector”. These look like class and

Pattern: element#IDNAME   Definition: The element#IDNAME selector

grayscale($color) Converts a color to grayscale. This is identical to desaturate(color, 100%).

@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

global_variable_exists($name) Check whether a variable with the given name exists in the global scope (at the top level of

@if The @if directive takes a SassScript expression and uses the styles nested beneath it if the expression returns

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