Figure 6.39. In this example, boxes appear smaller and further away as they get closer to the vanishing pointThisisessentiallyhowtheperspective-originpropertyworks.Itsetsthecoordin-
atesofthevanishingpointforthestage.NegativeYvaluesgivetheimpressionthat
theviewerislookingdownatthestage,whilepositiveonesimplylookingupfrom
belowit.NegativeXvaluesmimictheeffectoflookingfromtherightofthestage.
PositiveXvaluesmimiclookingfromitsleft.Figure6.40showsacontainingelement
withaperspective-originof-50%-50%.264 CSS Master