How to fix column width in <rich:datatable>

[xiaolu]

Xhtml file  Source:

<rich:dataTable id="table" value="#{stockInBB.dataModel}" var="row" rowClasses="odd-row,even-row".........

   styleClass="invoiceQueryDatatable">

<f:facet name="header">

    <rich:columnGroup>

     <rich:column>

      <h:outputText value="#"></h:outputText>

     </rich:column>

     <rich:column>

            .

            .

            .

      <h:outputText value="操作"></h:outputText>

     </rich:column>

</rich:columnGroup>

</f:facet>

<rich:column width="160px">

    <h:outputText value="#{row.invoiceNo}" maxlength="10" />

   </rich:column>

          ....

          .....

   <rich:column width="80px">

    <h:outputText value="#{row.invoiceStatusName}" maxlength="10" />

   </rich:column>

  nvoiceQueryDatatable style like this:

width: 100%;

height: 100%;

white-space: nowrap;