%link-elements;
Link Elements
Elements that can be included along with data characters inside the content model of linking elements, such as <xref>, <target>, and <ext-link>
Model
<!ENTITY % link-elements
"| %emphasis.class; | %phrase-content.class; |
%subsup.class;" >Expanded Model
| bold | fixed-case | italic | monospace | overline | roman | sans-serif | sc | strike | underline | ruby | named-content | styled-content | sub | sup