Question

in which of the following situations would it be best to choose portrait orientation?

Answer 1

Portrait vs. Landscape.

Portrait is like a normal piece of paper, where it is typically held taller than wide. They call it portrait because most portrait photography is done this way. It is best for anything that needs to look like a book or photos that are composed to be taller than wide.

Landscape is better for spreadsheets, wide shots, movies, and other things designed to be wider than they are tall.

Most web site mix these. The content is done in a portrait. However, only a landscape is viewable at any moment of time!