Template:Section sizes/testcases/Invalid markup testpage

{{testcases notice}}

This is a test bed for testing Module:Section sizes. Template {{tl|section sizes}} on the associated Talk page (or below, with an explicit call} shows problems with these section headers, emitting (at fr-wiki) the in-table-row, 'invalid markup' warning message balisage supprimé ; lien impossible).

The following section headers are copied from the French article :fr:Rafael Nadal, rev. 217706713.