A page layout in a web design is the important element that affects the user interface. A web designer may think it appropriate to be consistent in all the pages of a website. The pixel width of a page is also vital in arranging the various objects in a particular page layout.
Page width is fixed and constant with many popular websites and they have the same parameters to fit into the current demand of various popular browsers, popular monitor size and screen resolutions. Most of the pages found in the popular websites also have center alignment to address the aesthetic demands of bigger screens.