1250 x 16800
1250 x 16800 = 21000000
Example of 1250 x 16800 pixels banner dimensions.
1200 x 16850 1210 x 16840 1220 x 16830 1230 x 16820 1240 x 16810
1250 x 16750 1250 x 16760 1250 x 16770 1250 x 16780 1250 x 16790
1250 x 16850 1250 x 16840 1250 x 16830 1250 x 16820 1250 x 16810