990 x 20000
990 x 20000 = 19800000
Example of 990 x 20000 pixels banner dimensions.
940 x 20050 950 x 20040 960 x 20030 970 x 20020 980 x 20010
990 x 19950 990 x 19960 990 x 19970 990 x 19980 990 x 19990
990 x 20050 990 x 20040 990 x 20030 990 x 20020 990 x 20010