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<!DOCTYPE html> <html> <head> <script src="//libs.baidu.com/jquery/1.10.2/jquery.min.js"> </script> <script> $(document).ready(function(){ $("div p:nth-last-child(1)").css("background-color","yellow"); }); </script> </head> <body> <h1>This is a heading in body</h1> <p>The first paragraph in body.</p> <p>The second paragraph in body.</p> <div style="border:1px solid;"> <p>The first paragraph in div.</p> <p>The second paragraph in div.</p> <p>The last paragraph in div.</p> <span>This is a span element in div</span> </div><br> <div style="border:1px solid;"> <p>The first paragraph in another div.</p> <p>The second paragraph in another div.</p> <p>The last paragraph in another div (and the 1st child in this div, counting from the last child).</p> </div> <p>The last paragraph in body.</p> </body> </html>
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