Generated by SassMeister.com.

SassMeister-input-HTML.haml

%main
  .test1 
  .body 
  .test2

SassMeister-input.sass

// ----
// Sass (v3.3.0.rc.1)
// Compass (v0.13.alpha.10)
// ----

@import "breakpoint"
@import "singularitygs"

$grids: 3
$grids: add-grid(6 at 500px)
$grids: add-grid(12 at 700px)
$grids: add-grid(2 8 2 at 900px)
$gutters: 1/3



main, .main 
  +background-grid
  height: 100%
  height: 100vh
  
%baseside
  min-height: 100vw 
  background-color: tomato 
// // Trial One 
// $grids: 2 8 2
// $gutters: 1/3  

// .test1
//   +grid-span(1, 1)
//   @extend %baseside 
  
// .test2
//   +grid-span(1, 3)
//   @extend %baseside

SassMeister-output.css

Undefined operation: "3/36122 8 21 times 100%".

SassMeister-rendered.html

<main>
  <!-- / .test1 -->
  <!-- / .body -->
  <!-- / .test2 -->
</main>