Problem with HtmlPanelGrid.setRowClasses()

Question

Hi all! I have one more question! I am trying to configure HtmlPanelGrid from bean. I bound panelGrid to this bean and want to set css row classes. Here is me stylesheet.css:

.list-row-even { 
background-color: silver;
}

.list-row-odd { 
 background-color: red;
}

my jsf page:

   <rich:tab label="Top-List" id="screenTop">
     <h:panelGrid id="topListTable" binding="#{chartBean.topListTable}" />
   </rich:tab>

and my bean:

public TopListChartWrapper(Iterator<Entry> treeIt) {
    this.grid = new HtmlPanelGrid();
    //this.grid.setBgcolor("yellow");
    this.grid.setColumns(2);
    this.grid.setBorder(0);
    this.grid.setCellpadding("0");
    this.grid.setCellspacing("0");
    this.grid.setWidth("100%");
    this.grid.setRowClasses("list-row-even, list-row-odd");   
    this.treeIterator = treeIt;
    this.prepareGrid();
}

Any ideas? maybe somewhere I need register my stylesheet?

Thanks!