wiki markup for the html macro is not working

[Dmitry Ree]

{html}<a href="http://www.atlassian.com">Click here</a> to see the <b>Atlassian</b> website.{html}

Unknown macro: {html}

<a href="http://www.atlassian.com">Click here</a> to see the <b>Atlassian</b> website.

[AnnWorley]

It was not working on my instance until I enabled all the modules of the Confluence HTML Macros add-on at Confluence Admin>Manage Add-ons>all add-ons.

I look forward to hearing whether it works for you.

[Dmitry Ree]

Ann, thanks, that helped, however, it impacts the preview mode when the page is half split.