An electronic device and method are disclosed herein. The electronic device includes: a display having a display area that is variable, at least one processor operably connected to the display. The processor implements the method, including: controlling the display to display a plurality of elements on the display, receiving a user input requesting resizing of the display area, in response to the user input, identifying a core element among the displayed plurality of elements, resizing the display area based on the received user input and the identified core element, wherein a first window in which the core element is displayed is resized in proportion to resizing of the display area.