davidmatas

@function vunit($input, $width, $height){
  @if unit($width) != px or unit($height) != px {
    @error "function vunit() dimensions should contain a px unit. +[" + $width + ", " + $height +"]";
  }
  
  // Store $input unit 
  $unit: unit($input);
  // Remove unit from $input and convert to ratio
  $ratio: $input / ($input * 0 + 1) / 100;
  // Calc and store return values