684 x 40000
684 x 40000 = 27360000
Example of 684 x 40000 pixels banner dimensions.
634 x 40050 644 x 40040 654 x 40030 664 x 40020 674 x 40010
684 x 39950 684 x 39960 684 x 39970 684 x 39980 684 x 39990
684 x 40050 684 x 40040 684 x 40030 684 x 40020 684 x 40010