Why won't my divs stay fixed in Chrome after using adobe edge?

Hi, Can someone help me with an Edge problem? I'm using:

load: "http://cdn.edgecommons.org/an/1.0.0/js/min/EdgeCommons.js",

complete: function() {

1. EC.debug("Commons ready: "+EC.VERSION);
2. EC.centerStage(sym);
3. EC.Parallax.setup(sym); } });

to animate a div by scrolling and then using:

1. sym.$("Symbol_1").css("position", "fixed"):

to keep the animated div fixed. It stays fixed  perfectly in Firefox but it doesn't stay fixed in Chrome although the animation works. Also, any page that I've created in Dreamweaver with a fixed div fails to stay fixed in Chrome after bringing it into Edge and then publishing it. Does anyone know about this? Thanks.