Generated by SassMeister.com.

SassMeister-input-HTML.html

<div class="container">
  Container
</div>

SassMeister-input.scss

// ----
// Sass (v3.3.14)
// Compass (v1.0.0.rc.1)
// Singularity.gs (v1.2.0.rc.6)
// ----

@import "singularitygs";

@include add-grid(4);
@include sgs-change('debug', true);
@include sgs-change('background grid color', #ddd);

.container {
  @include background-grid;
  margin: 0 auto;
  height: 100%;
}

SassMeister-output.css

.container {
  background-image: linear-gradient(to right, #dddddd 0%, #dddddd 21.05263%, #e5e5e5 21.05263%, #e5e5e5 26.31579%, #dddddd 26.31579%, #dddddd 47.36842%, #e5e5e5 47.36842%, #e5e5e5 52.63158%, #dddddd 52.63158%, #dddddd 73.68421%, #e5e5e5 73.68421%, #e5e5e5 78.94737%, #dddddd 78.94737%, #dddddd);
  margin: 0 auto;
  height: 100%;
}

SassMeister-rendered.html

<div class="container">
  Container
</div>