/documentation/how-tos/developers/understanding-and-building-blocks-in-concrete5/) creates a 404
Permalinkhttp://www.concrete5.org/documentation/how-tos/developers/understanding-and-building-blocks-in-concrete5/)
to experiment. However that URL creates a 404 error. At this time I would a Block template for 5.6 C5.
Thank you,
Todd