1278 x 40000
1278 x 40000 = 51120000
Example of 1278 x 40000 pixels banner dimensions.
1228 x 40050 1238 x 40040 1248 x 40030 1258 x 40020 1268 x 40010
1278 x 39950 1278 x 39960 1278 x 39970 1278 x 39980 1278 x 39990
1278 x 40050 1278 x 40040 1278 x 40030 1278 x 40020 1278 x 40010