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Sass boilerplate

Building a collection of my common use Sass mixins, functions and snippets. All written with SCSS syntax.


Revision history

  • 2017-12-05 Update to Retina media query evaluation.
  • 2017-03-15 Published initial npm package.
  • 2015-03-24 Major rewrite supporting Sass 3.4.0 and above only, along with dropping of IE8 support and various implementation changes.
  • 2014-10-02 Final release for Sass 3.2.0. Future revisions make strong use of features such as Sass maps and the @error directive. Release has been tagged as final3.2 if anyone is after it.
  • 2013-03-31 Initial release.



Provides the following:

  • box-sizing: border-box applied to all elements.
  • CSS "reset" to base page elements.
  • font-size reset so 1em = 10px.
  • The obligatory clearfix.
  • Element hide/off canvas.
  • Text overflow with ellipsis helper.
  • Responsive image helper (images to their maximum width or container, preserving aspect ratio/height).
  • Removal of the tap highlight color from Webkit based browsers on touch enabled devices, proves to be rather annoying at times (applies to iOS/Mobile Safari in particular).

Designed for use with all modern browsers and IE8+. The default background, color and font-family can be overridden via Sass variables:

$resetBase_baseBackground: #000;
$resetBase_baseColor: #fff;
$resetBase_baseFontFamily: Arial,'Helvetica Neue',Helvetica,sans-serif;

@import 'resetbase';

...which would generate:

body,button,input,select,td,textarea,th {
	color: #fff;
	font-family: Arial,'Helvetica Neue',Helvetica,sans-serif;

body {
	background: #000;
	font-size: 62.5%;
	line-height: 1;

The clearFix, hide, textOverflowEllipsis, responsiveImage and tapHighlightRemove definitions are implemented as Sass placeholders and used with the @extend directive, rather than littering HTML markup with things like class="clearfix" / class="hide":

.myclasswithclearfix {
	@extend %clearFix;
	border: 1px solid #000;
	color: #f00;

.mybutton {
	@extend %tapHighlightRemove;
	color: #f00;
	display: inline-block;
	font-weight: bold;
	height: 20px;


Mixins for CSS3 animation, @keyframes and transition defintions.

Includes -webkit- vendor prefix (Firefox went prefix free since version 16).


A series of @functions for fetching what I consider collection values, defined within Sass map data types.

Currently for colors, font sizes, spacing (margin/padding/etc.) and z-indexes:

@import 'collection';

$colorMap: (
	blue: #1d90e0,
	grey: #898b8d,
	orange: #da4300

$fontSizeMap: (
	base: 1.2em,
	title: 1.3em

$spacingMap: (
	base: 20px,
	double: 40px

$zIndexMap: (
	base: 1,
	modal: 200,
	ceiling: 1000

.firstclass {
	color: color(blue);
	font-size: fontSize();
	margin-left: sp();
	z-index: zIndex(ceiling);

.secondclass {
	color: color(orange);
	font-size: fontSize(title);
	margin-left: sp(double);
	z-index: zIndex();

.zindexadjust {
	z-index: zIndex(modal,-5);


.firstclass {
	color: #1d90e0;
	font-size: 1.2em;
	margin-left: 20px;
	z-index: 1000;

.secondclass {
	color: #da4300;
	font-size: 1.3em;
	margin-left: 40px;
	z-index: 1;

.zindexadjust {
	z-index: 195;


  • Omitting map key argument from fontSize(), sp() and zIndex() will return the first value in each Sass map.
  • Function sp($key[,$multiplier]) optional $multiplier float parameter allows for adjustment of the requested spacing map value.
  • Function zIndex($key[,$shift]) optional $shift integer parameter allows increment/decrement to returned z-index map value.
  • Invalid map keys given to any function will throw a fatal Sass error.


Cross browser compatible @font-face embedding of webfont files:

  • eot (Internet Explorer)
  • svg (iOS legacy)
  • ttf (Safari, Android, iOS) and;
  • woff (Standards)

Implemented @font-face definition credit to Chris Coyier.

The fontFace() function accepts optional font-style and font-weight arguments - both which default to normal:

@import 'fontface';
@include fontFace('MyFont','font/myfont');


@font-face {
	font-family: "MyFont";
	src: url("font/myfont.eot");
	src: url("font/myfont.eot?#iefix") format("embedded-opentype"),
		url("font/myfont.woff") format("woff"),
		url("font/myfont.ttf") format("truetype"),
		url("font/myfont.svg#MyFont") format("svg");
	font-style: normal;
	font-weight: normal;


Media query mixins to assist with responsive width page layouts.

Breakpoints are defined in a $respondWidthMap map variable. As an example, how I typically implement using common device breakpoints:

@import 'respondwidth';

// respond breakpoint
// 997px - Infin (960px suggested frame/row width)
// 769px - 996px (732px suggested frame/row width)
// 481px - 768px (444px suggested frame/row width)
// 0px	 - 480px (300px suggested frame/row width)
$respondWidthMap: (
	centi: 996px,
	micro: 768px,
	nano: 480px

.pageframe {
	margin: 0 auto;
	width: respondWidthGet(centi,-36px);

	@include respondWidthFrom(centi) {
		padding: 0 50px;

	@include respondWidthFromUpTo(micro,centi) {
		width: respondWidthGet(micro,-36px);

	@include respondWidthFromUpTo(nano,micro) {
		width: respondWidthGet(nano,-36px);

	@include respondWidthUpTo(nano) {
		width: 300px;


.pageframe {
	margin: 0 auto;
	width: 960px;

@media screen and (min-width: 997px) {
	.pageframe {
		padding: 0 50px;

@media screen and (min-width: 769px) and (max-width: 996px) {
	.pageframe {
		width: 732px;

@media screen and (min-width: 481px) and (max-width: 768px) {
	.pageframe {
		width: 444px;

@media screen and (max-width: 480px) {
	.pageframe {
		width: 300px;


  • The generated @media query min-width is deliberately returned 1px greater than the $respondWidthMap map value defined to provide isolation between each breakpoint range.
  • Invalid breakpoint map keys given to any of these functions; or a from breakpoint greater than upTo given to respondWidthFromUpTo() will throw a fatal Sass error.
  • Function respondWidthGet($key[,$shift]) returns the defined width for a given $key, useful for dependent calculations. An optional $shift integer parameter allows for increment/decrement to map value.


Allows for creation of styles (typically images) which are targeted to "retina" high pixel density displays.

Implemented @media query credit to Marc Edwards.

An example using retinaImage():

@import 'retina';
$logoWidth: 200px;

.companylogo {
	background: url(companylogo.png) no-repeat 0 0;
	height: 200px;
	width: $logoWidth;

	@include retinaImage('companylogo2x.png',$logoWidth);


.companylogo {
	background: url(companylogo.png) no-repeat 0 0;
	height: 200px;
	width: 200px;

@media only screen and (-webkit-min-device-pixel-ratio: 1.3),
	only screen and (-o-min-device-pixel-ratio: 13/10),
	only screen and (min-resolution: 120dpi) {
	.companylogo {
		background-image: url(companylogo2x.png);
		background-size: 200px;


  • Width argument passed to retinaImage() is optional, defaulting to 100% (background-size: 100%) if not defined.
  • A 100% width is usually suitable if the image is to span the full background width of the element, allowing the browser to determine a scaled height keeping the aspect ratio.
  • Providing a specific width is (typically) only needed for CSS spriting tasks.

Also included is retinaOnly() for arbitrary CSS style blocks:

@import 'retina';

.shinybutton {
	font-weight: bold;
	height: 200px;
	width: 100px;

	@include retinaOnly() {
		// reward for retina is a red border
		border: 1px solid #f00;


Mixins for several CSS properties that (still) require vendor prefixes:

  • backface-visibility($value), providing -webkit- vendor prefix.
  • linear-gradient($angle,$stops), providing -webkit- vendor prefix with alternative (reversed) $angle syntax for to top, to right, etc.
  • transform($value), providing -webkit- and -ms- (required with IE9) prefixes for transform().


A collection of common use Sass stylesheets, mixins and functions.