JSF,项之间的panelGrid空间

我有这个代码,我想获得左空间(不是文件值)的优势。。。

            [![<h:panelGrid columns="2" cellpadding="5" >
                <p:outputLabel value="Field1:" for="itField1" />
                <p:inputText id="itField1" style="width:200px" required="true"
                             value="#{bean.field1}">
                </p:inputText>
                <p:outputLabel value="Field2:" for="itField2" />
                <h:panelGrid columns="2" style="width:200px"  cellpadding="0" cellspacing="0" >
                    <p:inputText id="itField2" required="true" 
                         value="#{="#{bean.field2}"
                         />
                    <p:commandButton icon="fa fa-search"
                                     />
                </h:panelGrid>
                <p:outputLabel value="Field3:" for="itField3" />
                <p:inputText id="itField3" style="width:200px" required="true"
                             value="#{bean.field3}">
                </p:inputText>
            </h:panelGrid>]

我要这个!

但是,我明白了:(

怎么做?