This template is used to built an infobox from bricks. The {{Infobox/optional subtitle}} template is used to add a subtitle inside an infobox.
{{Infobox/startbox}}
{{Infobox/subtitle|subtitle name|trigger parameter(s)|background color|text color|colspan value}}
{{Infobox/endbox}}
| Parameter | Mandatory | Default value | Explanation | 
| {{{1|}}} | No | {{PAGENAME}} | Used to add a title on the infobox. Example: {{infobox/subtitle|Your subtitle here...}} | 
| {{{2|}}} | No | N/A | Used to set the subtitle trigger parameter. Example: {{infobox/subtitle|Your subtitle here...|USA}} | 
| {{{3|}}} | No | 4682B4 | Used to change the title infobox background color. Example: {{infoboxsub/title|Your subtitle here...|USA|80B0E0}}Default color is Steel Blue. | 
| {{{4|}}} | No | 000000 | Used to change the title infobox text color. Example: {{infobox/subtitle|Your subtitle here...|USA|80B0E0|FFFFFF}}. Default color is black. | 
| {{{5|}}} | No | 2 | Used to change the title infobox colspan value. Example: {{infobox/subtitle|Your subtitle here...|USA|80B0E0|FFFFFF|3}}. | 
Example with parameter[edit source]
| {{Infobox/startbox}}
{{Infobox/title|Title}}
{{Infobox/optional subtitle|Administration|USA|E1E1E1}}
{{Infobox/endbox}}
 |  | 
Example without parameter[edit source]
| {{Infobox/startbox}}
{{Infobox/title|Title}}
{{Infobox/optional subtitle|Administration||E1E1E1}}
{{Infobox/endbox}}
 |  | 
Example inside a template[edit source]
{{Infobox/startbox}}
{{Infobox/title
 | Title
}}
{{Infobox/optional subtitle
 | Administration|{{{country|}}}|E1E1E1
}}
{{Infobox/endbox}}