840 x 15000
840 x 15000 = 12600000
Example of 840 x 15000 pixels banner dimensions.
790 x 15050 800 x 15040 810 x 15030 820 x 15020 830 x 15010
840 x 14950 840 x 14960 840 x 14970 840 x 14980 840 x 14990
840 x 15050 840 x 15040 840 x 15030 840 x 15020 840 x 15010