Click to Expand Preview Mobile web Click-to-expand ads are a type of expandable ad that can expand to a large size (up to 728x270 pixels). When a user chooses to engage with a click-to-expand ad by clicking it, the ad then expands to the center of your page. Once the ad is expanded, a translucent layer grays out the background of your page, giving the user a near full-screen ad experience.

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