// Convert pixels to rems // eg. for a relational value of 12px write rem(12) // Assumes $em-base is the font-size of <html>

@function rem($pxval) {

@if not unitless($pxval) {
    $pxval: strip-units($pxval);
}
$base: $em-base;
@if not unitless($base) {
    $base: strip-units($base);
}
@return ($pxval / $base) * 1rem;

}