Question

Is there any way to keep this simple JQuery animation from flashing? http://jsfiddle.net/v3DVf/6/

Answer 1

It’s probably because you’re scrolling too fast for jQuery to calculate everything. This seems to help:

$(window).scroll(function() {
    var scrollTop = $(window).scrollTop();
    $('#left').stop().animate({
        top: (300 - (0.5 * scrollTop))
    }, 350);
    $('#right').stop().animate({
        top: (300 - (0.2 * scrollTop))
    }, 350);
});​

That’s caching the scrollTop value rather than recalculating, and omitting the (true, true) from the stop function.

EDIT: Also, get rid of the #container css call, just make it position: fixed.