Wikipedia:Extended Image Syntax - Compatibility Considerations

Compatibility Considerations

The floating options left, center, and right explained above are supported by modern browsers, but don't work with older browsers. If necessary it's simple to get a floating effect also for old browsers:

{| align="right" | ] |}

This code is not intended for general use, however. There are few, if any, instances where support for such legacy browsers is necessary.

Read more about this topic:  Wikipedia:Extended Image Syntax