878 x 3990
878 x 3990 = 3503220
Example of 878 x 3990 pixels banner dimensions.
828 x 4040 838 x 4030 848 x 4020 858 x 4010 868 x 4000
878 x 3940 878 x 3950 878 x 3960 878 x 3970 878 x 3980
878 x 4040 878 x 4030 878 x 4020 878 x 4010 878 x 4000