Corner overlay (mosca)
In Spanish advertising jargon, a mosca (literally “fly”) is a small graphic element that stays fixed in a corner of the screen, such as an overlay ad on a website or a TV channel’s logo during broadcasts
What it means, how it is used and where it comes up, with its related concepts.
What it is and how it works
Online, it is a small ad that overlays the content and stays in the same position as the person scrolls, unlike layer ads, which move around the screen. It belongs to the floating formats and, like them, can be annoying if it is not easy to close.
In television, the term refers to the semi-transparent channel logo that identifies the broadcast, known in English as a digital on-screen graphic or bug. By extension, it also describes brief advertising overlays in a corner of the screen during a programme or broadcast.
Also known as
Digital on-screen graphic, Bug, Corner ad
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