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Sass utility framework for rapid stylesheet development

  • No style declarations
  • Stylesheet configuration
  • Responsive property declarations
  • Helper mixins
  • Development utilities


Documentation source is available in the docs/ folder.


To get started, add Scarab as a dev-dependency in your project via npm:

npm install scarab-scss --save-dev

Import scarab-scss at the beginning of your stylesheet:

@import 'path/to/node_modules/scarab-scss/scarab';


No style declarations

Scarab is a utility framework, not a UI library. Importing scarab-scss outputs zero CSS.

Stylesheet configuration

Importing scarab.scss creates a new global variable, $SCARAB in your Sass project. This is where your stylesheet configuration is stored.

To configure variables in your stylesheet, use the set() mixin:

/// Set a new value for a key in $SCARAB
/// @access public
/// @group helpers
/// @require {variable} SCARAB
/// @param {arglist} $definition - Definition of the new value

 * set() takes an arglist, $definition as its parameters.
 * The last argument in $definition should be the value that you want to set.
 * Preceding that is a chain of keys in the $SCARAB variable where the value should be set.

// Example:
// Configure stylesheet breakpoints
@include set(breakpoints, (
    small:  600px,
    medium: 900px,
    large:  1300px

// Replace the existing value of the 'medium' breakpoint
@include set(breakpoints, medium, 1024px);

// Define a new breakpoint, 'huge', and set its value to 1600px
@include set(breakpoints, huge, 1600px);

For more examples of configuration, have a look at the #configuration section in the docs.

Responsive property declarations

Declare responsive properties with the responsive() mixin. This allows you to easily manage the appearance of responsive components, and reduce media query clutter in your stylesheet.

// Example

.button {
    @include responsive((padding-left, padding-right), (
        base:   14px,
        medium: 18px,
        large:  22px
// Output

.button {
    padding-left: 14px;
    padding-right: 14px;

// 'medium' breakpoint
@media (min-width: 1024px) {
    .button {
        padding-left: 18px;
        padding-right: 18px;

// 'large' breakpoint
@media (min-width: 1300px) {
    .button {
        padding-left: 22px;
        padding-right: 22px;

Helper mixins

Scarab provides a bunch of helper mixins like type-scale() and query().

Development utilities

The baseline-grid() and element-overlay() mixins overlay visual guides over the DOM. These help when debugging layout and trying to achieve a consistent vertical rythmn.


  • scarab-carapace — Highly configurable framework for generating functional CSS classes
  • scarab-styleguide — Generate automatic styleguides from scarab-carapace configuration
  • scarab-cli — Command-Line Interface for the Scarab Sass ecosystem
  • scarab-snippets — Sublime Text snippets for the Scarab Sass utility framework