# HTML Ads

DT Exchange HTML Ads include all display ads, such as banners, MRECs, and interstitial ads. The following sections outline the specifications for different HTML ad categories. 

## Small Square Ads

| DIMENSIONS                              | CREATIVE FILE TYPE | MIME TYPES | MARKUP NOTES                                           |
| --------------------------------------- | ------------------ | ---------- | ------------------------------------------------------ |
| 300x250, 300x50[^1], 320x50, 320x10[^1] | PNG                | HTML       | Snippets of JS or HTML code only (not full documents). |

## Horizontal and Banner Ads

| DIMENSIONS                  | CREATIVE FILE TYPE | MIME TYPES | MARKUP NOTES                                                                    |
| --------------------------- | ------------------ | ---------- | ------------------------------------------------------------------------------- |
| 468x60[^1], 728x90, 480x320 | JPG/JPEG           | HTML5      | <p>Ad markup should be <code>CGI escaped</code>.<br>It should not be a URL.</p> |

## Tracking Click Events on Image Ads

The click tracking URL fires the JS click event when the user taps on the ad container (`webView`).

[^1]: This size can be passed in an array of multiple ad sizes via `banner-format` in the bid request. To view a sample bid request, see [Sample Bid Requests](https://docs.digitalturbine.com/dt-exchange/advertisers/dt-exchange-openrtb-2.5-specs/sample-bid-requests). To enable these sizes for your bidder, contact your demand account manager.