What are the specs in order to create my RoS Banner Ads?

Create a set of banners in all the following dimensions: 

  • 468x60
  • 250x250
  • 728x90
  • 300x250
  • 300x600
  • 320x180

Filetypes: .png, .jpg or .gif (no CMYK files) - max file size 800KB