jQuery Grid Plugin - jqGrid

Hi,  How do I change the size of a grid?  My default grid is very small and I don't see documentation to change the size of it.  Also how do I add/remove scroll bars?   Is there a good document source for these questions?  Thanks!

Here is my code.

$(function(){
  $("#list").jqGrid({
    url:'server3.php',
    datatype: 'json',
    mtype: 'GET',
    colNames:['Inv No','Date','Clientid', 'Amount','Tax','Total','Notes'],
    colModel :[
      {name:'invid', index:'invid', width:55},
      {name:'invdate', index:'invdate', width:90},
   {name:'clientid', index:'clientid', width:90},
      {name:'amount', index:'amount', width:80, align:'right',sorttype:'number',formatter:'number',summaryType:'sum'},  
      {name:'tax', index:'tax', width:80, align:'right',sorttype:'number',formatter:'number',summaryType:'sum'},  
      {name:'total', index:'total', width:80, align:'right',sorttype:'number',formatter:'number',summaryType:'sum'},  
      {name:'note', index:'note', width:150, sortable:false,sorttype:'number',formatter:'number',summaryType:'sum'},  
    ],
    pager: '#pager',
    rowNum:200,
    rowList:[10,20,30,40,50,100,500],
    sortname: 'invid',
    sortorder: 'asc',
    viewrecords: true,
    caption: 'My Grid'
  });
});

<table id="list"></table>
<div id="pager"></div>