Resolution, pixel size and Filesize demo page

200 pixels wide, resolution 72 ppi, filesize = 12K

300 pixels wide, resolution 72 ppi, filesize = 22K

400 pixels wide, resolution 72 ppi, filesize = 44K

500 pixels wide, resolution 72 ppi, filesize = 61K

600 pixels wide, resolution 72 ppi, filesize = 81K