Expandable banners provide a user-initiated panel to extend the ad beyond standard unit ad dimensions. The expanded panel allows extra space for guests to interact with the advertiser’s message without leaving the page. Panels will expand below or to the left of the creative based on site’s requirements and how ad units are positioned on the page.

The expand may be initiated on roll-over or on-click. Whichever method is used, the same method must be used for closing the expand panel in order to maintain a consistent guest experience. The expanded ad unit must include a close button.

Expandable Ads can be applied to the following ad sizes:

  • 728×90
  • 300×250

Accepted On



Ad Specifications

Please allow five business days for testing and review.

Assets Dimensions File Size
Initial Secondary
Audio/Video 3rd Party 1x1
gif, jpg, png, swf
728x90, expands down to 728x315 40K Polite download: 500K
User-initiated: 2MB
gif, jpg, png, swf
300x250, expands left to 500x250 40K Polite download: 500K
User-initiated: 2MB


  • Expand: Must be user-initiated
  • Expand: Panels must close in same method as expanded and include a close button
    • Expand on mouse-over must collapse on mouse-off
    • Expand on-click must collapse on-click
  • Controls: Audio snippet
  • Audio: Must be user-initiated on click and include a “Mute” button
  • Controls: Video snippet
  • 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

  • Video must be streaming
  • A default experience must be provided for non-compliant browsers
  • Z-index should be set to 100000001 or higher to properly overlay site content
  • Site reserves right of final approval on creative assets

Flash Guidelines

  • Flash SWF file needs to be exported as version 10.0 or below.
  • Hard coded URLs are not allowed
  • A default GIF will be served to browsers that do not have a compatible Flash Plug-In.
  • Frame Rate: 18 frames per second.
  • Third party served Flash ads must be have a wmode set to “opaque” in their object/embed code.
  • All creatives must be designed with a solid background color to avoid unwanted color conflicts with the displaying page.

ClickTags: ActionScript 2

Click-through functions must use the “Get URL” command. The action script code needed for the button layer in your Flash file should look exactly as it is below. Do not insert your URL where the “http:” is below.

on (release) {
  if (_level0.clickTAG.substr(0,5) == "http:") {
    getURL(_level0.clickTAG, "_blank");


ClickTags: ActionScript 3

The action script for the button layer in your Flash file should look exactly as it is below. Do not insert your URL where the “http:” is below.

  if (root.loaderInfo.parameters.clickTAG.substr(0,5)=="http:") {
    navigateToURL(new URLRequest(root.loaderInfo.parameters.clickTAG), "_blank");

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 Flash and third party creative must open a new window.
  • Placeholder or non-final ad content will not be considered as “proxies” for final creative.