Change row background color alternatively in CSS or jQuery

To Change row background c0lor alternatively in jQuery:
<script>
$(document).ready(function()
{
  $("tr:even").css("background-color", "lightblue");
});
</script>
In CSS
<style type="text/css">
 tr:nth-child(2n) { background-color: #FFEBCD; }
 </style>