<overline> element indicates content that is rendered with a line above it. This element is part of the highlighting domain. Use this element only when a more semantically appropriate element is not available.
<overline>element differently, just like any other element can be restyled. Thus, it is not the case that content in
<overline>elements will necessarily be rendered with a line above.
See appendix for information about this element in OASIS document type shells.
+ topic/ph hi-d/overline