I need a "back" link. but not one that I specifically specify, one that is based off the actual "back button" history of their browser. for instance, a single page can be linked from multiple other pages, and it would be silly to have a back button go back to some arbitrary choice of mine instead of the actual page they came from to get here. is this possible with simple CSS/HTML or am I in JS territory? as always, i try googling for answers but keywords here, elude me.