Style Selector
How to add an item to the style selector
The style appears in the style selector if you define a format for the block element and specify the <select/> for its representation in Visual Editor.
- In a style sheet listed in 
common.xml (e.g.\Styles\common.css), create a style for an element, e.g.:h3{ color: red; } - In 
common.xml, create a<radiogroup>or use the existing one for the style selector. - Add a 
<format>element to the radio group. - Add the following attributes to the format and specify their values, e.g.: 
- id="h3"
 - label="Heading 3"
 - notes="Heading 3"
 - block="h3"
 
 - Add the 
<select/>element to the<format>element. 
In common.xml you should have something like this:
<radiogroup> 
  <format id="h3" label="Heading 3" notes="Heading H3" block="h3"> 
    <select /> 
  </format> 
</radiogroup>If you want a button on the toolbar, too, add the <button/> element within <format> (right under <select/>) and specify its label or its image attribute:
<button label="H3"/>

