The OPA Pushdown auto-expands, pushing down the page content immediately upon page load. This ad allows a large space to communicate the advertiser’s message without covering site content. The auto-pushdown/ad expansion is limited to eight seconds and automatically retracts on the ninth second, allowing the page to roll-up. The guest may initiate re-expansion of the ad unit for further interaction.

Accepted On



Ad Specifications

Please allow five business days for testing and review.

Assets Dimensions File Size
Initial Secondary
Audio/Video 3rd Party 1x1
OPA Pushdown
gif, jpg, png, HTML5
Resolved Pencil
40K * Polite download: N/A
User-initiated: N/A
OPA Pushdown
gif, jpg, png, HTML5
Auto Expand Pushdown
60K * Polite download: 250K
User-initiated: 250K
OPA Pushdown
gif, jpg, png, HTML5
User-initiated Pushdown
60K* Polite download: N/A
User-initiated: 2MB

* The total combined weight of all three OPA Pushdown units is 160K. That file weight can be allocated across the three units as needed, as long as they do not total more than 160K.


  • Pushdown: May auto-expand for 8 seconds, must collapse on 9th second
  • Pushdown: Subsequent expands must be user-initiated on-click
  • Pushdown: A close button must be present at all times to allow the site visitor full control over the ad experience
  • Audio: Must be user-initiated on click and include a “Mute” button
  • Video: May be user-initiated or auto-play; if auto-play video cannot exceed 30 seconds
  • Video: Must include “Play” and “Stop” buttons

Additional Details

  • For ads served in-house:
    • Polite download file allowance does not apply to creative served in-house
    • The top-right 35×35 pixel area will be overlaid by the expand/close button via the ad template
    • Expand/collapse functionality is controlled by the site through ad template
  • Pushdown panels (auto-expand and user-initiated) may be the same creative and do not need to be separate assets
  • 970×66 backup non-expanding strip required
  • A default experience must be provided for non-compliant browsers
  • Site reserves right of final approval on creative assets
  • Capping: Applied by ad server (in-house or third party), auto pushdown capped at once per user per day
  • Auto expand 3rd party OPA pushdown that includes a user-initiated video player, must have a mechanism in place to prevent the auto-expand from auto-closing after the user has clicked to watch the video
  • Auto expand In-House OPA pushdown that includes a user-initiated video player, a mechanism to prevent the auto-expand from auto-closing after the user has clicked to watch the video must be included
    • When a user clicks “play” in the auto-expand creative, the following JavaScript function must be called from the Flash creative to disable the auto-close timer: cancelAutoClose()

HTML5 Guidelines

First party hosted HTML5 creative must follow the below guidelines:

  • A single click-through URL
  • All third party click tracking must be built into HTML5 file
  • No additional interactive features aside from the click-through (no photo galleries, mouse-over interactions, etc)
  • Assets must be submitted as .zip folders containing all applicable files; one .zip folder per creative
  • File references in the HTML5 must use relative file paths
  • HTML5 creative must be “plug and play”—assets must be delivered in a state in which the main HTML5 file can be opened and function correctly. HTML5 creative which is not in a functioning state will be rejected
  • Total animation may not exceed 20 seconds and may contain no more than three loops of animation within the 20 second limit

General Guidelines

  • Site reserves the right of final approval on creative assets
  • The advertising content must be clearly identifiable as an advertisement, as opposed to a link within site content. Advertisers must be clearly identified by name in at least one frame of the advertising content
  • Ad units that have a white or partially white background must be bound by a visible one (1) pixel non-white box built into the graphic. Creative must still meet size specifications with border
  • All advertisers must have a privacy policy, no more than (one) 1 click from the linking page to the Ad unit
  • Ad units must have a linking URL that resolves to an active page
  • All third party creative must open a new window
  • Placeholder or non-final ad content will not be considered as “proxies” for final creative