title: Change font size for text
body: <p>Is there an easy way to change font size for some none-header text with <a href="http://semantic-ui.com/" rel="noreferrer">Semantic-UI</a>, without make changes to the theme or use plain css?</p>
  
  <p>I see for some elements, like button, one could use <code>large</code>, <code>massive</code> and so one. Perhaps something like this is possible for "normal text" also, but I cannot in the documentation see how, but I might be blind?</p>