1240 x 20000
1240 x 20000 = 24800000
Example of 1240 x 20000 pixels banner dimensions.
1190 x 20050 1200 x 20040 1210 x 20030 1220 x 20020 1230 x 20010
1240 x 19950 1240 x 19960 1240 x 19970 1240 x 19980 1240 x 19990
1240 x 20050 1240 x 20040 1240 x 20030 1240 x 20020 1240 x 20010