Ad Specification

Seamless Skin

Desktop Creatives

Skin

File format

Responsive HTML5 as a ZIP

Third-party tag

Size

2560 x 1440 pixels (width and height set to 100%)

Notes

The skin must be built as responsive HTML5 and scale with the window size.

A central content area sits horizontally centred within the skin; the remaining space is used for the skin content.

Read the content-area width and the top-banner height from window.contentWidth (default 1000) and window.topHeight (default 250).

These variables are only available for ZIP delivery; third-party tags must use static values matching the publisher specification.

Top-Banner

File format

JPG, WEBP or MP4

Responsive HTML5 as a ZIP

Third-party tag

Size

Image or video: 1280 x 180 pixels

HTML5: width responsive up to max. 1280 pixels, height following the publisher's billboard format, in Switzerland 1000 x 250 pixels

Notes

Optional.

If the top banner contains interactive elements such as video controls, carousels or multiple click tags, it must be built as a separate creative and overlaid on the skin. Otherwise it can form part of the skin.

Sticky video is supported when the format is used with the "Skin Top with Sticky Streaming Video" top banner. The video player then stays visible after the top banner has scrolled out of view, while the skin remains behind the page.

General information

File size

Max. 3.5 MB (total weight)

Animation time

30 seconds max. (may vary by publisher)

Audio

User-initiated only

Tracking

Click tags and trackers as specified by the respective provider.

Video metrics such as view-through rate require measurement via the provider's API.

Delivery

The HTML5 must be minified and optimised for polite load.

Notes

All assets (images, videos, scripts) must be contained within the creative's ZIP file.

Linking to externally hosted files or scripts is not permitted and may cause the creative to be blocked.

Webfonts from font libraries such as Adobe Typekit, Google Fonts or MyFonts are the exception.

All assets should be compressed and optimised to the lowest possible file weight.