Шаблон:Box-shadow border — Википедия
box-shadow: inset 1px 1px 0 #000, inset -1px -1px 0 #000;
{{Box-shadow border}} provides style declarations to show a visual line, similar to a border, at one or more sides of an element.
This template is useful where an element should not have a border, or uses a border already. Navboxes, in particular, use borders to give the appearance of spacing between elements.
This template should complement text, instead of taking the place of text. Opera Mini and Internet Explorer 8 and earlier ignore this template's style declarations, leaving only the text perceivable. Color blind and visually impaired users may also only perceive the text.