what exactly does csstransforms3d , csstransforms and csstransitions consists of ?

what exactly does csstransforms3d , csstransforms and csstransitions consists of ?

hey guys i was just going through the source of a plugin that uses alot of CSS-3 transforms and internally it uses modernizer to detect features , like so : 

  1. this.support3d = Modernizr.csstransforms3d;
  2. this.support2d = Modernizr.csstransforms;
  3. this.supportTrans = Modernizr.csstransitions;

if you know through the modernizer documentation  , here.

now what i would like to ask is what CSS properties exclusively come under : 

csstransforms3d ? 

what CSS properties exclusively come under : 

csstransforms ?

and what CSS properties exclusively come under : 

csstransitions ?

i answer seems obvious , but is there a definitive guide i can lookup that would answer my question ? 

I know its a CSS question , but since it involved modernizer , i taught i'd ask on this forum .