770 x 21000
770 x 21000 = 16170000
Example of 770 x 21000 pixels banner dimensions.
720 x 21050 730 x 21040 740 x 21030 750 x 21020 760 x 21010
770 x 20950 770 x 20960 770 x 20970 770 x 20980 770 x 20990
770 x 21050 770 x 21040 770 x 21030 770 x 21020 770 x 21010