File:Blank.png

Blank picture, 3 x 2 pixels; good for a placeholder when you need it to assume a 3:2 aspect ratio. See Image:Blank300.png for a placeholder which won't take up any visible vertical space, and Image:Blank300vert.png for a horizontal one.

The image is "displayed" here between the dots: ..

With a title (popup, hoverbox): ..