// Convert pixels to rems // eg. for a relational value of 12px write rem(12) // Assumes $em-base is the font-size of @function rem($pxval) { @if not unitless($pxval) { $pxval: strip-units($pxval); } $base: $em-base; @if not unitless($base) { $base: strip-units($base); } @return ($pxval / $base) * 1rem; }