1000 x 21000
1000 x 21000 = 21000000
Example of 1000 x 21000 pixels banner dimensions.
950 x 21050 960 x 21040 970 x 21030 980 x 21020 990 x 21010
1000 x 20950 1000 x 20960 1000 x 20970 1000 x 20980 1000 x 20990
1000 x 21050 1000 x 21040 1000 x 21030 1000 x 21020 1000 x 21010