Google labs announced a new product to help web masters to understand how everyone sees their website.The tool name is Browser Size.The result is based on a sample of data collected by google about the visitors of your site coming from google.The webmaster can just enter the url of the website in the tool and the tool will provide a pictorial representation  containing various divisions.

The picture is in such a way that if a button is in 80% region,then only 80 % of the users can see the button with their default screen resolution.20% visitors have to scroll to see the button.Using this tool,the webmaster s can improve the design of their site.

You can access Browser Size from here