Html code
<div id="myTable" class="handsontable"></div>
The div element on which the table will be appended to using the handshake script
Css
body {background: white; margin: 20px;}
h2 {margin: 20px 0;}
.zebraStyle > tbody > tr:nth-child(2n) > td {background: #ccc;}
.zebraStyle > tbody > tr:nth-child(2n+1) > td {background: #fff;}
The > means to take directly the element you present.
In this case you take the tbody directly after .zebraStyle ( your table element ).
After that take the odd tr rows.
At last take directly all td cells and apply the background color.
Script
var arr= [["", "2012", "2013", "2014(YTD)"],["Ferrari", 1460089088.3900001, 1637243070.99, 283566771.55000001],["Alfa Romeo", 1199141138.1900001, 1224624821.1500001, 192307335.49000001]];
$(document).ready( function(){
$('#myTable').handsontable({
data: arr,
minSpareRows: 1,
contextMenu: true,
readOnly: true,
fixedColumnsLeft: 1
});
$('#myTable').find('table').addClass('zebraStyle');
});