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.