780 x 3900
780 x 3900 = 3042000
Example of 780 x 3900 pixels banner dimensions.
730 x 3950 740 x 3940 750 x 3930 760 x 3920 770 x 3910
780 x 3850 780 x 3860 780 x 3870 780 x 3880 780 x 3890
780 x 3950 780 x 3940 780 x 3930 780 x 3920 780 x 3910