You can use the mark tag to highlighttext.
This line of text is meant to be treated as deleted text.
This line of text is meant to be treated as no longer accurate.
This line of text is meant to be treated as an addition to the document.
This line of text will render as underlined
This line of text is meant to be treated as fine print.
This line rendered as bold text.
This line rendered as italicized text.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.
Vestibulum id ligula porta felis euismod semper eget lacinia odio sem nec elit.
Donec id elit non mi porta gravida at eget metus.
