//----------------------------------------------------------------------------------------------------------------------
// PX TO REM CONVERTER
//----------------------------------------------------------------------------------------------------------------------

/// Converts a pixel value to a rem (root element) value using `$font-size-root`.
/// @param {Length} $px - Pixel value
/// @param {Length} $font-size-root [$font-size-root] - Root font size for calculation (optional)
/// @return {Length}
/// @example scss Assuming `$font-size-root: 16px`
///   rem(16px)
///   // 1rem
///   rem(24px)
///   // 1.5rem
///   rem(32px, 8px) // Different base value specified
///   // 4rem
@function rem($px, $font-size-root: $font-size-root) {
	@return strip-unit($px / $font-size-root) * 1rem;
}