Generated by SassMeister.com.

SassMeister-input-HTML.html

<div class="box"></div>
<div class="box"></div>
<div class="box"></div>
<div class="box"></div>
<div class="box"></div>

SassMeister-input.scss

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

$size: 50px;
.box { 
  width: $size;
  height: $size;
  background-color: #99346a;
  float: left;
  margin: $size;
}

SassMeister-output.css

.box {
  width: 50px;
  height: 50px;
  background-color: #99346a;
  float: left;
  margin: 50px;
}

SassMeister-rendered.html

<div class="box"></div>
<div class="box"></div>
<div class="box"></div>
<div class="box"></div>
<div class="box"></div>