How do I use TextBox and Page Scrolling together?

Hello, I have noticed weird behavior when I have TextBoxes on a page and use scrolling. Please see this link: https://dl.dropboxusercontent.com/u/19970748/TextBoxScrollPage/index.html

If you left-click and scroll up and down, you will notice the TextBoxes do not scroll at same speed as page and you can see the text underneath. Why is this?

Here is the code used to scroll (this is from Joannesalfa's scrolling example):

I forgot to mention that I tried using Pin Behavior, but the TextBoxes still lag behind the whole page scrolling. I'm hoping this is just something simple that I missed.

I got your PM, because you're using DOM elements, they do not draw in Canvas. Use Sprites.