core/src/scss/utilities/functions/type-checks/_is-relative-length.scss
///
/// Validates wether something is a relative length unit
///
/// @name is-relative-length
///
/// @param {Integer} $value - the value to type check
///
/// @group mixin
@function is-relative-length($value) {
@return is-number($value) and index('em' 'ex' 'ch' 'rem' 'vw' 'vh' 'vmin' 'vmax', unit($value)) != null;
}