A system and method for extending the utility of an HTML IFrame web page element by enabling the IFrame to dynamically resize its viewing boundaries according to the vertical and horizontal dimensions of the secondary content to be displayed within the IFrame is disclosed. The extended IFrame determines the height and width dimensions of the secondary content, stores the dimensions within cookies, renders the secondary content within the IFrame, calls a function to retrieve dimension values from the cookies and sets the height and width attributes of the IFrame to resize the IFrame.