The classes that are marked as bold in the example below, are set by the plugin to enabled some additional styling to be added to e.g. input fields or buttons
<form id="demoForm" method="post" action="json.html" class="bbq ui-helper-reset ui-formwizard ui-widget ui-widget-content ui-helper-reset ui-corner-all">
<div id="fieldWrapper">
<span style="display: inline;" class="step ui-formwizard-content ui-helper-reset ui-corner-all" id="first">
<span>First step - Name</span><br>
<label for="firstname">First name</label><br>
<input class="ui-wizard-content ui-helper-reset ui-state-default" name="firstname" id="firstname"><br>
<label for="surname">Surname</label><br>
<input class="ui-wizard-content ui-helper-reset ui-state-default" name="surname" id="surname"><br>
</span>
<span style="display: none;" id="confirmation" class="step ui-formwizard-content ui-helper-reset ui-corner-all">
<span>Last step - Username</span><br>
<label for="username">User name</label><br>
<input class="ui-wizard-content ui-helper-reset ui-state-default" disabled="disabled" name="username" id="username"><br>
<label for="password">Password</label><br>
<input class="ui-wizard-content ui-helper-reset ui-state-default" disabled="disabled" name="password" id="password" type="password"><br>
<label for="retypePassword">Retype password</label><br>
<input class="ui-wizard-content ui-helper-reset ui-state-default" disabled="disabled" name="retypePassword" id="retypePassword" type="password"><br>
</span>
</div>
<div id="demoNavigation">
<input class="ui-wizard-content ui-helper-reset ui-state-default ui-formwizard-button ui-state-disabled" disabled="disabled" id="back" value="Back" type="reset">
<input class="ui-wizard-content ui-helper-reset ui-state-default ui-formwizard-button ui-state-active" id="next" value="Next" type="submit">
</div>
</form>