To adjust primefaces datatable size,live scrolling with screen size

I have a datatable with live scrolling feature. The table fits fine in my development machine but the user of this app has larger screen.It would be good if the datatable fits according to the screen size. Also the height of the datatable should get adjusted with more number of rows for live scroll. Currently I have 15 rows for live scrolling. It would be good if the scroll rows increases with the height of the screen. Please help me in this regard.

My datatable code snippet:

 <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>

CSS of the entire page

    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;
}