Appropriate styling could make these significant phrases much more use now.

As Bob Hopgood points out, HTML stands for Hypertext Markup Language, which is a W3C Recommendation used by NATO to markup documents. Something like class="classified" is used to indicate that some text like In Confidence is added to all the classified paragraphs. If the class attribute has a value of unclassified no additional text is added. Type Help for further information.