Board Thread:Writer's Workshop/@comment-26008088-20150423043334/@comment-25428589-20150423054431

It's because you're posting in visualeditor, as opposed to source mode. Go to your editing preferences and change "preferred editor" to source mode.

Then, edit the page you want to use it on & type this, without the quotes: " ". When you press "preview" it won't work, it only works once you publish the edit.