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Technical specification of ad formats

Branding iLayer

Branding iLayer is a very popular version of ad format. It is based on Branding format, which is due to its size around entire page excellently visible for all the time a user is scrolling down the page. It is, however, supplemented by excellent functionality, when the mouse is over MegaBoard (Leader) it expands down and reveals another content in the form of an image or a video.

Preview Template


Requirements for Branding iLayer

  1. It is necessary to supply static Branding according to the specifications below or instead of static Branding repetitive Branding according to its specifications.
  2. MegaBoard according to the specifications below.
  3. MegaBoard Expanded (the one that ejects from MegaBoard) according to the specifications below.
  4. Optionally, MegaBoard can include video. You can prepare a video banner according to this example .

When using the basic animation of the ad format, it is enough to supply static images (JPG, PNG) separately, the banner will be completed on our side.

In the case of advanced animations, the use of dynamic elements, or the insertion of a video, it is necessary to provide materials for individual parts created in HTML.


  • Branding: Image (JPG, PNG, GIF)
  • MegaBoard: Image (JPG, PNG, GIF) or HTML5. Use this to create an HTML5 expanding MegaBoard template.
  • Optional Video (codec-H.264, contejner-MP4)


  1. Branding: 2000×1280 px.
  2. Megaboard: 998×200 px.
    The megaboard is placed horizontally in the middle of the page. There is a gap of 17 px between the top edge of the page and the top edge of the megaboard. There is a gap of 12 px between the bottom edge of the megaboard and the content of the page.
  3. Megaboard expanded: 998×600 px.
  4. Optional Video: according to the maximum dimensions for BigBoard or Megaboard Expanded.

File naming

To speed up the deployment process, name the files as follows:

  1. Client+Campaign+Branding (e.g.: CSOB_Karty_Branding)
  2. Client+Campaign+MegaBoard (e.g.: CSOB_Karty_MegaBoard)
  3. Client+Campaign+MegaBoardExpand (e.g.: CSOB_Karty_MegaBoardExpand)
  4. Client+Campaign+Video (e.g.: CSOB_Karty_Video)

Maximum data size

  • Branding: 400 kB
  • MegaBoard + MegaBoard Expanded (oba dohromady): 150 kB (HTML5 200 kB)
  • Video: soubor max. 1 MB | bitrate max. 256 kb/s

Requirements for the appearance of Branding

  1. Branding must not be transparent
  2. Place important advertising messages in a 1366 × 768 px wide column (see red area in drawing.) This is very important due to the different resolutions and ratios of the display devices. This area is visible to most users.

External display code

  • No

External measurements (beyond the measurements of Mafra a.s.)

  • Yes, 1 URL with UTM parameters.
  • Accepted third-party URLs: AdForm, DCM, Sizmek, Gemius, IAS, DoubleVerify.

Caution! All third-party tracking codes must use only secure links (https: //)

For the smooth start and running of campaigns, the documents which do not meet described specification must be aprooved by the MAFRA technical department in advance. Thank you for your understanding.