390 x 20000
390 x 20000 = 7800000
Example of 390 x 20000 pixels banner dimensions.
340 x 20050 350 x 20040 360 x 20030 370 x 20020 380 x 20010
390 x 19950 390 x 19960 390 x 19970 390 x 19980 390 x 19990
390 x 20050 390 x 20040 390 x 20030 390 x 20020 390 x 20010