Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.3.0.rc.2)
// Compass (v1.0.0.alpha.17)
// ----

$grey: #777;
$logosize: 31;
$blockpercent: 7%;

// Calculate the proper size of the blocks
@function block-calc($n){
  @return $blockpercent * $n;
}
$blockheight: #{block-calc($logosize)};



@mixin block-global{
  height: #{$blockheight};
  border-radius: 20%;
  position: absolute;
  background: $grey;
}
.block-global{
  @include block-global;
}

SassMeister-output.css

.block-global {
  height: 217%;
  border-radius: 20%;
  position: absolute;
  background: #777777;
}