When I have two tweens which I want to run concurrently, I've been taking the following approach (concatting a string for the `position`), but feel there must be a better way.
var tl = new TimelineLite({ paused: true });
var $box = jQuery(".box");
var duration = 2;
tl.add(TweenLite.to($box, duration, {
ease: 'Bounce.easeOut',
width: 100
}));
tl.add(TweenLite.to($box, duration, {
// don't want bounce-ease on this property
height: 300
}), '-=' + duration);
Any suggestions very welcome!