320 x 20

320 x 20 = 6400

Example of 320 x 20 pixels banner dimensions.

270 x 70 280 x 60 290 x 50 300 x 40 310 x 30

320 x -30 320 x -20 320 x -10 320 x 0 320 x 10

320 x 70 320 x 60 320 x 50 320 x 40 320 x 30

330 x 30 340 x 40 350 x 50 360 x 60 370 x 70