Page width is different for Firefox and IE

I created a page with iframe, the page width is fine for Firefox, but very narrow for IE.

Any suggestion what is going between Firefox and IE for page width setup?

Thanks.

JYI

Post the code that you used

Or provide us with your site url

Thanks.

Here is the codes generated by Amazon site.

<iframe src="http://www.amazon.com/gp/redirect.html?ie=UTF8&location=http%3A%2F%2Fwww.amazon.com%2F&tag=my_site_amazon_id&linkCode=ur2&camp=1789&creative=390957""width="100%" height="1000"frameborder="0" scrolling="yes"></iframe>

Try my URL http://www.mazyworld.com

Go to Shop -> Amazom using Firefox and IE.

JYI

Set the width to 980px instead of 100%

Thanks.

JYI