An option for the Seamless Skin format, that allows for the creation of a custom HTML5 responsive skin, via the Zip-file upload tool.
Recommended default creative dimensions
2560x1440px (Responsive HTML5)
Top Banner (optional):
930x180px* (JPG, MP4 or HTML5)
*Default Top banner dimensions vary by country:
- 🇩🇪 DE: 970x250px
- 🇩🇰 DK: 930x180px
- 🇫🇮 FI: 1000x400px
- 🇳🇴 NO: 1000x300px
- 🇸🇪 SE: 1000x240px
- 🇬🇧 UK: 970x250px
Top banner dimensions can also vary from publisher to publisher. You should always confirm specs with the publishers on your plan before creating skin assets.
Format description and guidance
This template allows for the creation of a HTML5 seamless skin. The skin must be built as responsive HTML5 with the width and height set to 100%, so that it scales responsively based on the size of the window.
A central “content area” should be positioned in the horizontal centre of the skin, with the remaining space used for the skin content.
In order to ensure that the skin adapts correctly to the publisher page, use the code snippet below to fetch the width of the content area (window.contentWidth), and height of the top banner (window.topHeight):
const contentWidth = window.contentWidth || 1000,
topHeight = window.topHeight || 250;
Note - these variables are only available to creative uploaded to Adnami as a zip-file, third party tags must use static values that correspond to the publisher specs.
Structure your skin as show below:
If your top banner contains interactive elements (eg video controls, carousels, multiple clicktags etc), then it should be built as a separate banner (that will be overlaid on top of the skin). Otherwise it can be incorporated as part of the skin.
Max total file weight
3.5 MB. For best performance, all assets should be compressed and optimized to the lowest possible file weight.
Maximum animation time 30 seconds (may vary by publisher).
Responsive HTML5 (either Adnami hosted by sharing a zip-file or served via 3rd party tags).
HTML must be minified and optimized for polite load.
Click tags and tracking
For Adnami hosted creatives, see our clicktags and tracking guide.
Supported 3rd party providers
Campaign Manager 360, Adform, Sizmek, Adjust, Flashtalking
Supported Ad Verification
Adnami supports impression and viewability tracking from 3rd party providers, such as IAS, MOAT, DoubleVerify & Userneeds.