Class styles are the only type of CSS style that can be applied to any text in a document, regardless of which tags control the text. All class styles associated with the current document are displayed in the CSS Styles panel (with a period [.] preceding their name) and in the Style pop‑up menu of the text Property inspector.
You’ll see most styles updated immediately, however, you should preview your page in a browser to verify a style was applied as expected. When you apply two or more styles to the same text, the styles may conflict and produce unexpected results.