In addition, viewing an element is initially presented as a single line, but you can expand the view to include multiple lines (as many as needed with a scroll bar) on a per-element basis.

Bar codes, familiar to us all as the black and white rectangular mark that enables products in a supermarket to be tracked, represent data using the spacing of parallel lines.

Lines at the grocery store might become as obsolete as milkmen, if a new tag that seeks to replace bar codes becomes commonplace.