Web banner
It is an image plus a title and then a text that appears when you pass the mouse over it, located at the foot of the congress website.
When you click on it, it redirects to the url where you want.
Examples https://omega3awarenessweek2022.com/#banners

Size: 1280 x 1280 pixels in non-transparent .PNG or .JPG 100%. (1:1)
Text: up to 20 words