jQuery Forum

It's not clear what you're trying to achieve, especially when everything is the same shade of grey. Do both items animate left to right? Or should the second animate right to left?

I'm trying to animate the width of the element from left to right if i click on List 2

Thanks for the answer. I examined your code and I realized that you didn't reset the left:0 or right:0.

In all cases you are animating the value(s) not resetting them. There is no need to touch the right value at all, everything depends on left and width only. The animation will set left to the correct value at the end anyway, so there's no need to reset it.