best size website no bigger than 960 px
iphone- Width: 320X Height: 480
MacBook Pro 15-inch = 1440 x 900
Macbook Pro 15-inch high-res = 1680 x 1050
Macbook Pro 17-inch = 1920 x 1200
Dell 24-inch monitor = 1920 x 1200
Apple 27-inch Cinema Display = 2560 x 1440
ipad- 1024-by-768-pixel resolution at 132 pixels per inch (ppi)