All ads with white backgrounds are required to have a 1px grey border to segregate the ad from the site, as there are some sections of the site that have varying colour backgrounds [over the page ads are exempt from this rule]
All flash ads must have a solid element as a background, as the sites background colour changes in areas of the site. [over the page ads are exempt from this rule]
All audio must be click initiated – including sound effects.
All animation must be keyframe only, any ads that use scripting for animation will not be released for trafficking. ActionScript should be used for timeline control only.