Editing Module:Buffer/doc (section)

======args.''cssName''======
{{code|lang=lua|1=Element{{ndash}}Buffer:_add{ cssName = cssValue } }}<br />
A non-number ''key'' and ''value'' pair may default as the <code>cssName</code> and <code>cssValue</code> parameters for {{luaref|mw.html:css}} when the key matches none of the three [[#args.argsName|argName]] keys nor the name of any available function for Buffer and mw.html objects.

This sends non-boolean ''cssValue'' though {{luaref|tostring||y}} prior to forwarding it to mw.html:css. Because this is the default, any typoed key goes to mw.html:css as ''cssName''. Names of functions not yet [[#loadable|loaded]] also end up there.

For convenience, any <code>_</code> character in the key string is automatically substituted with the <code>-</code> character; thus {{code|lang=lua|1=border_bottom_style =}} is equivalent to {{code|lang=lua|1=['border-bottom-style'] =}}.

The form {{code|lang=lua|1=Element-Buffer:_add{ css = { cssName = cssValue } } }} also works (or to clear a previously set value; see example at [[#args.htmlFunction|args.htmlFunction]] for more details).

{{anchor|args.tag}}