// Convert pixels to ems // eg. for a relational value of 12px write em(12) when the parent is 16px // if the parent is another value say 24px write em(12, 24)
@function em($pxval, $base: $em-base) {
@if not unitless($pxval) { $pxval: strip-units($pxval); } @if not unitless($base) { $base: strip-units($base); } @return ($pxval / $base) * 1em;
}