320 x 12000
320 x 12000 = 3840000
Example of 320 x 12000 pixels banner dimensions.
270 x 12050 280 x 12040 290 x 12030 300 x 12020 310 x 12010
320 x 11950 320 x 11960 320 x 11970 320 x 11980 320 x 11990
320 x 12050 320 x 12040 320 x 12030 320 x 12020 320 x 12010