Adds a CSS class to the <div> wrapper tags; passing |class=hnum will cause ordered lists to have numbers, whereas |class=hwrap allows list items to be wrapped.
Adds CSS style declarations to the list tags (<ol> or <ul>); complex styles should not be used in articles (per English Wikipedia's MOS:DEVIATIONS) but may be acceptable in the User, Project and Talk namespaces. Example: |style=background: LightYellow; border: 1px solid Silver;
Indents the list by a number of standard indents (one indent being 1.6em), particularly handy for inclusion in an indented discussion thread. Example: |indent=2
There is one situation where the .hlist class will fail in one or more browsers:
When a horizontal list, built using wiki markup, is displayed on pages in the Special namespace (where it may be transcluded from MediaWiki: pages), horizontal lists will not wrap to the next line. This is due to HTML Tidy not being active on these pages. This may be fixed in the future (Bugzilla:39617). As a workaround, use HTML instead of wiki markup to build the lists.