1700 wide x 264 high pixels @72 pixels per inch
- Upload here https://www.force11.org/node/add/jumbotron-slide-1700×264
- Upload the artwork using the 'Jumbotron slide' field
- Heading is the admin name of your banner
- Destination is the link path, which can be relative or a hard link
At the bottom of page on left you can set the banner to be published or not
There are some further instructions at the top of the banner submission page.
There are also other options such as scheduling which you can check out on the banner publishing page.