// Function: size
// Simple Rem based multiplier
// - Use to convert pixel dimension to REM units
// - Default is 0.5rem (8px) which is our Spacing unit.
// - Optional: Add variable based value to $unit when 1rem is not 16px.
// E.g: size(5) will output: 2.5rem which is 40px;

@function size($multiplier, $unit:0.5rem) {
    @return $multiplier * $unit;
}