W3Schools 在线编辑工具（TIY） V3.0
编辑的代码:
运行代码 »
©
w3s.com.cn
<!DOCTYPE html> <html> <head> <style> .descendants * { display: block; border: 2px solid lightgrey; color: lightgrey; padding: 5px; margin: 15px; } </style> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"> </script> <script> $(document).ready(function(){ $("div").find("span").css({"color":"red","border":"2px solid red"}); }); </script> </head> <body> <div class="descendants" style="width:500px;">div (current element) <p>p (子) <span>span (孙)</span> </p> <p>p (child) <span>span (孙)</span> </p> </div> </body> </html>