Template:Tag
{{#switch:pair
|c|close = |sSecond|single |o|open |p|pair = <lesser thantag{{#if:| {{{params}}}}}
}}{{#switch:pair
|c|close =
|s|single = />greater than
|o|open = >
|p|pair = >...
}}{{#switch:pair
|s|single |o|open = |c|close |p|pair = </tag>