<html>
<head>
<script src="https://libs.baidu.com/jquery/1.10.2/jquery.min.js">
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<script>
$(document).ready(function(){
$("p:nth-last-child(odd)").css("background-color","yellow");
$("p:nth-last-child(even)").css("background-color","pink");
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</head>
<body>
<p>The first paragraph in body (even).</p>
<p>The last paragraph in body (odd).</p>
<div style="border:1px solid;">
<p>The first paragraph in div (even).</p>
<p>The second paragraph in div (odd).</p>
<p>The third paragraph in div (even).</p>
<p>The last paragraph in div (odd).</p>
<span>This is a span element.</span>
</div><br>
<div style="border:1px solid;">
<p>The first paragraph in another div (even).</p>
<p>The second paragraph in another div (odd).</p>
<p>The third paragraph in another div (even).</p>
<p>The last paragraph in another div (odd).</p>
</div>
</body>
</html>