Template:Columns-start

Example

{{Columns-start|num=3}}
<div style="background-color:yellow;">Column 1 here</div>
{{Column}}
<div style="background-color:skyblue;">Column 2 here</div>
{{Column}}
<div style="background-color:salmon;">Column 3 here</div>
{{Columns-end}}

Produces:

Column 1 here

Column 2 here

Column 3 here

See the Wikipedia article on this template.