Textpattern Help
Use the %per cent symbol% to indicate a span.
The <span> HTML tag is applied, along with whatever class, style, id or language attributes are specified between the opening per cent and the first character of the phrase:
%(caps)SPAN% → <span class="caps">SPAN</span> → SPAN
%{color:red}red% → <span style="color:red">red</span> → red