The outline for a `zeptoblog` generated page doesn't look great: http://services.w3.org/xslt?xmlfile=http%3A%2F%2Fservices.w3.org%2Ftidy%2Ftidy%3FdocAddr%3Dhttp%253A%252F%252Fblog.io7m.com%26passThroughXHTML%3D1&xslfile=http%3A%2F%2Fwww.w3.org%2F2002%2F08%2Fextract-semantic.xsl ``` No top-level heading (h1) found, no outline extracted. ``` Should probably be using `h1` and `h2` tags properly.