The top tower displays on all content pages at the top right when the browser is over 800 pixels wide. In most cases, it displays a 300 pixel wide creative. However, if the browser is less than 915 pixels, a 120 pixel wide creative serves instead. We suggest a 300x600 creative, though you can use a 300x250 creative as well.

This slot displays on browsers less than 770 pixels wide, which generally targets tablets and phones. The slot is fixed to the bottom of the reader's screen and remains in view floating over content as the reader views the story.

We recommend supplying both creative sizes to fill this slot, so the reader always sees a large creative.

The bottom tower displays at the end of a story on long content pages when the browser is over 800 pixels wide. This slot generally serves on quiz, list and longform stories. It usually doesn't display on video stories, as they are too short.

In most cases, the slot displays a 300 pixel wide creative. However, if the browser is less than 915 pixels wide, a 120 pixel wide creative serves instead. We suggest a 300x600 creative, though you can use a 300x250 creative as well.

This slot appears on every story page, immediately before the comments section. Its width varies with browser size, starting at 970 pixels wide on a desktop and shrinking to 300 pixels wide on a phone. It allows for up to 250 or 280 vertical pixels.

We recommend supplying several creative sizes to fill this slot, so the reader always sees a large creative.