(topic hi-d) The bold (<b>) element is used to apply bold highlighting to the content of the element. Use this element only when there is not some other more proper element. For example, for specific items such as GUI controls, use the <uicontrol> element. This element is part of the DITA highlighting domain. Category: Typographic elements The underline (<u>) element is used to apply underline highlighting to the content of the element. Category: Typographic elements The italic (<i>) element is used to apply italic highlighting to the content of the element. Category: Typographic elements Category: Typographic elements Category: Typographic elements The teletype (<tt>) element is used to apply monospaced highlighting to the content of the element. Category: Typographic elements The superscript (<sup>) element indicates that text should be superscripted, or vertically raised in relationship to the surrounding text. Superscripts are usually a smaller font than the surrounding text. Use this element only when there is not some other more proper tag. This element is part of the DITA highlighting domain. Category: Typographic elements A subscript (<sub>) indicates that text should be subscripted, or placed lower in relationship to the surrounding text. Subscripted text is often a smaller font than the surrounding text. Formatting may vary depending on your output process. This element is part of the DITA highlighting domain. Category: Typographic elements