width changes on touch scroll

[truthslayer]

I'm resizing the contained divs in my callback function, and the size/positioning of the divs seems to "jump/settle" only once I scroll over the div (on an iPhone), eg:

all2sides.com/mobile.html

I'm assuming this has something to do with the way I'm resizing the divs in the callback, but I'm not sure.

(relatedly, the widths seem screwed up when viewing this on a desktop, and this does not appear to change with scrolling).