The Parallax Reveal ad format is a responsive format used to add a static background image, which is revealed when scrolling down the page, in addition to parallax animation, to your ad banner. These banners can be fully responsive with adaptive breakpoints or a static size. They also include tools that can be used to produce a parallax animation in the banner.

Parallax Reveal includes the following attributes:

  • Maximum size is 10 MB. (The initial load can be set at 200 KB. For more information, see Add Polite Load to your HTML Ads.



    • While Sizmek Ad Suite (SAS) ads can be up to 10 MB, ads must also follow the specifications of the publishers or DSPs that will ultimately run the ad.

    • Maximum ad size can be increased beyond 10 MB upon request; however, you should check with your media partner to verify that the ad will not be rejected by the publisher.

  • Ad can contain multiple user interactions.

  • Ad can contain video.

  • Responsive or Fixed sizes available.

  • Offers tools for a background reveal and parallax animation.


Note: This format is not supported in unfriendly iFrames.


Click here to preview a demo of the Parallax Reveal format.

How Does It Work?

The following example of the Parallax Reveal format features an ad that reveals a fixed city skyline with hands and clouds that animate across the frame as the page scrolls down. This makes the the hands appear close to the viewer, the clouds further away, and the background the furthest from the viewer. Additionally, the banner is responsive and changes dimensions and background image based on the page width.

The first images shows the viewer at the top of the page with the ad towards the bottom. Notice the ad shows the bottom of the city skyline, which is the background image.


The second image shows the view as the viewer has scrolled down the page. The clouds have moved across the banner as the banner reveals the background which has remained in place giving the illusion that the hands moved in front of the elements behind them.


This example is of a responsive banner with breakpoints, which changes its layout depending on the dimensions of the page. As you adjust the size of the browser window, the ad resizes to the specified break points and adjusts the layout of the elements inside; such as the background image and information bubble size.

Building a Parallax Reveal Ad

Use a 3rd Party Authoring Tool


Use a code editor. For more information, see Create a Parallax Reveal in a Code Editor.

Set Up


Share your ad with your media agency.

Parallax Reveal Ad Details



Any: Fixed, Responsive/Adaptive

There are a variety of custom variables that determine the size of the ad. For more information, see Configuring Custom Script Variables.

Maximum duration


The publisher or the media technology (for example, DSP) determine the max duration.

IAB recommendation: 30 seconds

Maximum size

10 MB

If your ad does not require any of the format's features, consider building a Rich Media Banner Banner. For more information, see About Rich Media Banner.

Tag type


For more information about tag types, see Sizmek Ad Suite Ad Formats.




Examples include Web, Mobile Web, In-app.



iOS 8.0 and later, Android 4.2 and later


Any modern browser

Internet Explorer 10+, Firefox, Chrome, Safari, Microsoft Edge

Dynamic Creative


For more information, see Introduction to Dynamic Creative.

Polite Loading


Can be configured to load politely.

Safe Frame Support


Can be served inside a safe frame.

MRAID (In-app support)

Not Supported

Cannot be served In-app.

Local Preview


Ad can be viewed locally, outside SAS.



Can be configured to resize responsively.

Publisher Certification



For more information, see About Publisher Certifications.






Available Metrics

Examples include:

  • Click-through

  • Impressions

  • Viewability

  • UserAction

  • Video Quartiles

  • Video Control

For more information about metrics, see Glossary: Dimensions and Metrics for Aggregated Reports.

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