This template is used in system messages, and onapproximately 331,000 pages. Changes to it can cause immediate changes to the Wikipedia user interface. To avoid major disruption and server load, any changes should be tested in the template's/sandbox or/testcases subpages, or in your ownuser subpage. The tested changes can be added to this page in a single edit. Please discuss changes on thetalk page before implementing them.
Generally, collapsible templates should not be used in articles. For allowable uses and other considerations, please seeMOS:COLLAPSE.
Syntax
{{Hidden begin| showhide=<!--"left", otherwise omit-->| expanded=<!--"true", "on", yes", etc, otherwise omit-->| class=| width=| border=| bgcolor=<!--background color for both the title and content-->| style=| ta1=| titlebgcolor=<!--background color for the title-->| titlestyle=| title=| ta2=| contentbgcolor=<!--background color for the content-->| contentstyle=}}<!----[content to be hidden placed here]---->{{Hidden end}}
