768 x 20000
768 x 20000 = 15360000
Example of 768 x 20000 pixels banner dimensions.
718 x 20050 728 x 20040 738 x 20030 748 x 20020 758 x 20010
768 x 19950 768 x 19960 768 x 19970 768 x 19980 768 x 19990
768 x 20050 768 x 20040 768 x 20030 768 x 20020 768 x 20010