A display device comprising: a display control portion configured to display on a display screen a plurality of contents ordered into a mosaic; an operation input portion adapted to receive operation information input by a user specifying one or more contents displayed on the display screen; a selection portion adapted to select said one or more contents displayed on the display screen, based on the operation information; and a scroll portion adapted for scrolling the display screen; characterized in that: the scroll portion is configured to scroll the display screen in a state where the display position of the selected content remains the same and only the non-selected contents are scrolled; the display control portion is configured to display the selected content in a floating state wherein, in a region where the selected content and non-selected content overlap each other, the selected content is displayed; and there is further provided a transparency processing portion adapted to apply transparency processing to the selected content after a predetermined time period has elapsed, said transparency processing rendering the selected content transparent or semi-transparent; wherein when the transparency processing portion has rendered said selected content transparent or semi-transparent other content located behind the transparent or semi-transparent selected content can be focused upon and selected responsive to user operation. a display control portion configured to display on a display screen a plurality of contents ordered into a mosaic; an operation input portion adapted to receive operation information input by a user specifying one or more contents displayed on the display screen; a selection portion adapted to select said one or more contents displayed on the display screen, based on the operation information; and a scroll portion adapted for scrolling the display screen; characterized in that: the scroll portion is configured to scroll the display screen in a state where the display position of the selected content remains the same and only the non-selected contents are scrolled; the display control portion is configured to display the selected content in a floating state wherein, in a region where the selected content and non-selected content overlap each other, the selected content is displayed; and there is further provided a transparency processing portion adapted to apply transparency processing to the selected content after a predetermined time period has elapsed, said transparency processing rendering the selected content transparent or semi-transparent; wherein when the transparency processing portion has rendered said selected content transparent or semi-transparent other content located behind the transparent or semi-transparent selected content can be focused upon and selected responsive to user operation. the scroll portion is configured to scroll the display screen in a state where the display position of the selected content remains the same and only the non-selected contents are scrolled; the display control portion is configured to display the selected content in a floating state wherein, in a region where the selected content and non-selected content overlap each other, the selected content is displayed; and there is further provided a transparency processing portion adapted to apply transparency processing to the selected content after a predetermined time period has elapsed, said transparency processing rendering the selected content transparent or semi-transparent; wherein when the transparency processing portion has rendered said selected content transparent or semi-transparent other content located behind the transparent or semi-transparent selected content can be focused upon and selected responsive to user operation.