818 x 21040
818 x 21040 = 17210720
Example of 818 x 21040 pixels banner dimensions.
768 x 21090 778 x 21080 788 x 21070 798 x 21060 808 x 21050
818 x 20990 818 x 21000 818 x 21010 818 x 21020 818 x 21030
818 x 21090 818 x 21080 818 x 21070 818 x 21060 818 x 21050