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<script src="/lib/jquery-1.12.2.min.js"></script>
<script>
$(document).ready(function(){
$("p").not(":even").css("background-color", "yellow");
});
</script>
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<body>
<p>My name is Donald (index 0).</p>
<p>I live in Duckburg (index 1).</p>
<p>My best friend is Mickey (index 2).</p>
<p>My name is Daisy (index 3).</p>
<p>I live in Duckburg (index 4).</p>
<p>My best friend is Minnie (index 5).</p>
</body>
</html>