Browsers subtract as much as 50 pixels on the right and left, and 200 pixels on the top and bottom for things like scroll bars, toolbars, and the container of the window.
Nchọpụta nchọgharị na-ewepu ihe dị ka 50 pixels na nri na aka ekpe, na 200 pixels n'elu na ala maka ojiji ha maka ihe dị ka scrollbars, toolbars, na akpa nke windo ahụ.