The Italic element specifies that the text should be rendered in italic font, where available. Otherwise, alternative mapping is allowed.
Anything between the <I>I elements</I> should be italics.
would render as :
Anything between the I elements should be italics.
<I>
can also take the CLASS, ID and STYLE attributes to allow style sheet definitions to be applied to it. For more details of these attributes, see the Style Sheets topic.