Size: Scalable format, 2 ad units to provide: 970 x 90 and 970 x 415. This advertising format must be hosted by a certified third party.
- Initial dimensions: 970 x 90
- When the user clicks on the expansion button, the ad unit opens to 970 x 415. The web content is pushed downward to make room for the advertiser content.
- Advertising copy must be clearly distinguishable from web page content.
- Maximum animation duration: must close after 7 seconds (unlimited if specified by user).
- Must contain Open and Close buttons.
- Size when open: 970 x 415.
- Size when closed: 970 x 90.
- Frequency: one per day per user (unlimited if specified by user).).