Big Box

Size: 300 x 250

File Size (max): 100k

Duration: 30 seconds maximum

Formats: jpg, gif, HTML5. Important: we also need jpg file as backup in case the HTML5 won’t load on user’s device (max 39K).


  • Place more than 300 pixels from the left side of the page to allow ad to expand.
  • Multiflex with 300 x 600 and 300 x 1050 whenever page structure allows.

Onscreen: can display expando ads over content (they expand to 600 x 250). Expando ads must be hosted by a certified third-party.


  • Computer
  • Tablet
  • Mobile


  • Home
  • Section homepage
  • Article

Download technical specifications