Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.4.9)
// Compass (v1.0.1)
// Susy (v2.1.3)
// ----

@import "susy";

$susy: (
  flow: ltr,
  math: fluid,
  output: float,
  gutter-position: split,
  container: auto,
  container-position: center,
  columns: 12,
  gutters: 0.25,
  column-width: false,
  global-box-sizing: border-box,
  last-flow: to,
  debug: (
    image: hide,
    color: rgba(#66f, 0.25),
    output: overlay,
    toggle: top right,
  ),
  use-custom: (
    background-image: false,
    background-options: false,
    box-sizing: true,
    clearfix: false,
    rem: true,
  )
);

.grid-example-container {
  @include container;
}

SassMeister-output.css

.grid-example-container {
  max-width: 100%;
  margin-left: auto;
  margin-right: auto;
}
.grid-example-container:after {
  content: " ";
  display: block;
  clear: both;
}
head {
  display: block;
  position: fixed;
  right: 10px;
  top: 10px;
  z-index: 999;
  color: #333;
  background: rgba(255, 255, 255, 0.25);
}
head:before {
  content: "|||";
  display: block;
  padding: 5px 10px;
  font-family: sans-serif;
  font-size: 16px;
  font-weight: bold;
}
head:hover {
  background: rgba(255, 255, 255, 0.5);
  color: red;
}
head:hover ~ .grid-example-container, head:hover ~ body .grid-example-container {
  position: relative;
}
head:hover ~ .grid-example-container:before, head:hover ~ body .grid-example-container:before {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  content: " ";
  z-index: 998;
}