/// Convert values for `rem` unit to `px`.
/// @author Diego Versiani
/// @param {String} $size - Size value in `rem` as expected for the frontend styles.
/// @param {String} $context - Context for which the size value will be used, defaults to `frontend`. Kept for compatibility with the Fluid Theme projects.
/// @return {String} - Values converted from `rem` to `px`.
@function remsize( $size, $context: 'frontend' ) {
    @return strip-unit( $size ) * 10px;
}