Pattern: :nth-last-of-type(Nth) The argument Nth is of the following format:

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

Pattern: :link   Definition: The :link pseudo-class

variable_exists($name) Check whether a variable with the given name exists in the current scope or in the global scope.

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

Pattern: [attr=val]   Definition: The [attr=val] selector matches

red($color) Gets the red component of a color. Calculated from HSL where necessary via

quote($string) Add quotes to a string if the string isn’t quoted, or returns the same string if it is.

append($list, $val, $separator:auto) Appends a single value onto the end of a list. Unless

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