emacs/test/manual/indent/sgml-mode-attribute.html

<element attribute="value"></element>

<element
    attribute="value">
  <element
      attribute="value">
  </element>
</element>

<!--
    Local Variables:
    sgml-attribute-offset: 2
    End:
  -->
Have `sgml-attribute-offset' control SGML attribute indentation Fixes: debbugs:20161 * textmodes/sgml-mode.el (sgml-attribute-offset): New defcustom. (sgml-calculate-indent): Use `sgml-attribute-offset' for attribute indentation. 2015-03-22 08:22:29 -07:00			`<element attribute="value"></element>`

			`<element`
			`attribute="value">`
			`<element`
			`attribute="value">`
			`</element>`
			`</element>`

			`<!--`
			`Local Variables:`
			`sgml-attribute-offset: 2`
			`End:`
			`-->`