878 x 3800
878 x 3800 = 3336400
Example of 878 x 3800 pixels banner dimensions.
828 x 3850 838 x 3840 848 x 3830 858 x 3820 868 x 3810
878 x 3750 878 x 3760 878 x 3770 878 x 3780 878 x 3790
878 x 3850 878 x 3840 878 x 3830 878 x 3820 878 x 3810