jQuery UI Theming
Die filament group erklärt sehr ausführlich von Buttons und Toolbars mit jQuery UI.
Below, we create a range of button types that frequently appear in application interfaces — stand-alone buttons, toggles, and buttons grouped into multi-function toolbars — and use classes from the framework to demonstrate how you can leverage the CSS for non-jQuery elements. We tested the sample markup and the framework CSS to ensure that styles render the same whether the button markup is the actual button form element (<button>), a link (<a>), or any other tag that makes sense for your particular application.