Provides special properties (beyond those of the regular HTMLElement interface they also inherit) for manipulating elements. View Source js/lib.dom.d.ts, line 2473 Members Type: string # cols Sets or retrieves the frame widths of the object. View Source js/lib.dom.d.ts, line 2476 Type: string # rows Sets or retrieves the frame heights of the object. View Source js/lib.dom.d.ts, line 2481