我的数据表代码段：

<h:form id="form">
   <div id="content">
      <h:selectOneMenu id="workspaceOptions" />
      <f:selectItem id="option1" itemLabel="Assignments"
         itemValue="assignment" />

      </h:selectOneMenu>


      <p:dataTable id="workSpaceList" var="data"
         value="#{workSpaceBean.lazylpId}" widgetVar="multiSelection"
         selection="#{workSpaceBean.selectedRows}" resizableColumns="true"
         liveScroll="true" scrollRows="15" scrollWidth="85%"
         scrollHeight="69%" styleClass=".ui-datatable-hor-scroll"
         tableStyle="table-layout:auto;width:100%;" scrollable="true"
         filteredValue="#{workSpaceBean.filteredWorkSpaceItems}">

         <p:ajax event="rowSelect" listener="#{workSpaceBean.onRowSelect}"
            update=":editWrkSp:display" oncomplete="multiDialog.show()" />

         <p:column selectionMode="multiple" style="width:5%" />
            .
            .
            .
            <p:column headerText="Insured" filterBy="#{data.insuredName}"
            sortBy="#{data.insuredName}" style="width:20%">
            <h:outputText value="#{data.insuredName}" />
            <!--   style="width:250px" -->
         </p:column>

         <p:column headerText="City" filterBy="#{data.custAddress_City}"
            sortBy="#{data.custAddress_City}">
            <h:outputText value="#{data.custAddress_City}" />
         </p:column>
      </p:dataTable>
   </div>
   </form>

整个页面的CSS

body {
    margin: 0px 0px 0px 0px;
    font-family: tahoma;
    font-size: 11px;
    background-color: #E8F0F8;
    height: 100%;
    max-height: 100%;
    overflow: hidden;
}

#header {
    width: 100%;
    height: 90px;
    background-color: #194775;
    position: fixed;
}

#sidepanel {
    width: 180px;
    height: 100%;
    background-color: #D9E6F3;
    margin-top: 90px;
    position: fixed;
    float: left;
    border-right-style: solid;
    border-width: 0.5px;
    border-color: #4A7EBB;

    /* z-index:1; */
}

#logo {
    float: left;
    position: absolute;
    left: 5px;
}

#title {
    position: absolute;
    float: right;
    /* padding-right: 10px;
   padding-bottom:90px; */
    right: 30px;
    top: -25px;
    /* bottom:10px; */
}

.title1 {
    font-family: Agency FB;
    font-size: 32px;
    color: #7F7F7F;
    font-style: bold;
    /* float: right; */
    text-align: left;
    /* padding-right: 10px; */
    font-weight: bold;
    /* padding-bottom:20px; */
}

.accordionMenu .ui-accordion-header a {
    background: #194775;
    color: white;
}

.accordionMenu .ui-accordion-content {
    /* color:#254061!important */
    text-decoration: none;
    background-color: #B9CDE5;
    font-weight: bold;
    padding: 5px 5px;
}

#content {
    position: fixed;
    margin: 90px 0 0 180px;
    width: 100%;
    height: 100%;
    background-color: #E8F0F8;
}

.label {
    display: block;
    font-weight: bold;
    color: #FFFFFF;
    background-color: #194775;
    width: 170px;
    /* text-align:left; */
    padding: 4px 4px 4px 6px;
    text-decoration: none;
    margin-top: 1px;
}

.selectMenu {
    /* float:right; */
    margin-left: 20px;
    margin-top: 15px;
}

.ui-datatable-hor-scroll .ui-datatable-tablewrapper,.scrolling-div .ui-datatable-tablewrapper
    {
    overflow: auto;
    width: 100%;
    height: 100% padding-bottom:    5px;
}

.datatable {
    padding-left: 15px;
    padding-right: 15px;
}

.calendarStyle {
    width: 250px;
}

.ui-corner-top {
    display: none;
}

.ui-chkBox-Box ui-widget ui-corner-all ui-state-default {
    /* vertical-align:middle; */
    display: none;
}