$pad-auto: auto;
$pad-xxsmall: px-to-rem(2);
$pad-xsmall: px-to-rem(4);
$pad-small: px-to-rem(8);
$pad-medium: px-to-rem(16);
$pad-large: px-to-rem(24);
$pad-xlarge: px-to-rem(32);
$pad-xxlarge: px-to-rem(40);
$pad-xxxlarge: px-to-rem(80);
