The "wrap" option configured for Tidy on Wikipedia is broken. If the "show hoverbox above links" setting is disabled, Tidy sometimes inserts the line break into the editsection link, causing it to display like "[ edit]". (See e.g. http://mormegil.wz.cz/etc/editsec_ff.png)

The "tidied" HTML looks like:

<div class="editsection" style="float:right;margin-left:5px;">
[<a href="
/w/index.php?title=Josephus_problem&amp;action=edit&amp;section=2">
edit</a>]</div>

Notice the superfluous end of line after the opening anchor tag, just before the "edit" text.

This might be fixed by some Tidy option like "wrap-attributes", I don't know, I have never used Tidy.

Version: unspecified
Severity: normal