* '''background'''. Optional. The colour of the background. If set to "off", the background colour of the box will be the background colour of the page or containing box. If not set, it defaults to #F9F9aa. | * '''background'''. Optional. The colour of the background. If set to "off", the background colour of the box will be the background colour of the page or containing box. If not set, it defaults to #F9F9aa. |