positionLeft = $(this).css('left'); returns pixels instead of rem

positionLeft = $(this).css('left'); returns pixels instead of rem

Hi,

I have the a div with following CSS: 
  1. style =" z-index: 3; left: 12rem;

With jQuery I want to grab the left value. I am using this code for it:
  1. positionLeft = $(this).css('left');

But this returns the pixel value (144px) instead of the original 12rem

What can I do to get the 12rem instead of the 144px I get returned now?

Thanks