m stands for "marginer" and can be used to set margin to any element.
The order is: left-top-right-bottom
{| class="wikitable"
|-
! Code !! Example !! Result
|-
| {{raw:data:m|10|element}} || {{raw:data:m|10|actual text}} || {{m|10|actual text}}
|-
| {{raw:data:m|10|5|element}} || {{raw:data:m|10|5|actual text}} || {{m|10|5|actual text}}
|-
| {{raw:data:m|10|5|20|element}} || {{raw:data:m|10|5|20|actual text}} || {{m|10|5|20|actual text}}
|-
| {{raw:data:m|10|20|30|50|element}} || {{raw:data:m|10|20|30|50|actual text}} || {{m|10|20|30|50|actual text}}
|}
{{#ifeq:{{{5|}}}|{{{5}}}|{{{5}}}
|{{#ifeq:{{{4|}}}|{{{4}}}|{{{4}}}
|{{#ifeq:{{{3|}}}|{{{3}}}|{{{3}}}
|{{#ifeq:{{{2|}}}|{{{2}}}|{{{2}}}
|}}}}}}}}