源代码:
<!DOCTYPE html> <html> <head> <style> .descendants * { display: block; border: 2px solid lightgrey; color: lightgrey; padding: 5px; margin: 15px; } </style> <script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js"> </script> <script> $(document).ready(function(){ $("ul").children().css({"color":"red","border":"2px solid red"}); }); </script> </head> <body class="descendants">body (great-grandparent) <div style="width:500px;">div (grandparent) <ul>ul (direct parent) <li>li (child) <span>span (grandchild)</span> </li> <li>li (child) <span>span (grandchild)</span> </li> </ul> </div> </body> </html>
运行结果：