Audio and Video:
No host-initiated audio is permitted on CNN.com. Audio must be user-initiated by clicking within the banner and contain clearly visible "mute" and "stop" functionality. Video can be host-or-user initiated. Any exceptions need prior approval.

In-Banner Streaming Video:
Up to 30 seconds on all pages. Allowance of up to 2 minutes maximum on section main pages and special reports (excluding the Home Page) in the 336x280 banner for user-initiated video. Video must contain clearly visible "mute" and "stop/play" functionality.

Animation/Looping Guidelines for all media types:
There is no loop maximum, but total animation time for all loops combined cannot exceed :15 seconds (Approved Pharma Clients ONLY may have up to 30 seconds to support legally required FDA and other disclaimers). Also, ads may not employ persistent rapid/strobing animation of any graphic, copy, or background element(s).

Functionality:
Where applicable, the "ON/OFF", "STOP/PLAY", and "CLOSE" button must be prominent and obvious. Where applicable, the method of expansion and un-expansion must be the same. (i.e., click-to-initiate and click-to-close OR roll over-to-initiate and roll off-to-close). CNN.com strongly recommends and prefers 'click to initiate', however, will accept roll over/roll off on pages other than the CNN.com home page pending site approval in advance.

Close Button:
A mandatory "CLOSE X" button(s) must be prominent and obvious in the top right corner for floating, out-of-banner, billboard, pushdown and expandable banner ads initiated by a user's click. Close button font size must be 11 pixels, bold text, and 4 pixel padding around the text. The ad, including "CLOSE X" button, may not cover core page navigation or other ads..

Pop-unders and Pop-ups:
Pop-unders are ONLY permitted on the CNN.com home page. No host-initiated audio or video in any pop-unders. Pop-ups are not accepted on CNN.com.