gistfile1.txt

SC.View.design(SC.Animatable, {
  layout: { top: 20+(25*i), right: 0, left: 20, height: 25 },
  transitions: {
    height: { duration: .25, timing: SC.Animatable.TRANSITION_EASE_IN_OUT }
  }

//--- more code ---

//--- in render method ---

for(var i=0;i<c;i++) {
  var kid = children[i];
  if(kid.isAnimatable) {

    var f = kid.get("frame");

    kid.adjust("height", 100);
  }
}