I was testing one little application that i made and viewed it in these 3 browsers.What bothers me that my application wasn't looking the same(in size and width) in all of them.IE8 even added scrollbars,which i didn't put in my code.
I thought that these things are being handled internally by Flash player and that application's initial height and width will look the same in any browser.
Are there any rules for setting the size and width-is it better to use x and y coordinates or percentage based size?
Also one more question,how to make design view to trully replicate(by height and width) my browser?
The actual size of the Flash container may differ based on how the page is rendered by the browser. It's up to you to try to make sure that your HTML/CSS layout is consistent.