User:Est. 2021/Template/Square flag

{{Documentation This template uses common names and ISO 3166-1 alpha-2 codes of European countries to display their square flags.
 * content =

Principal subdivisions may also be listed by ISO 3166-2 codes.

Usage
Use the second parameter to change the size of the picture (default is 45, because it is mainly used in standard userboxes).

Development
This template is still under construction, for any doubt leave a message here.