<!DOCTYPE html> <html> <head> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js"> </script> <script> $(document).ready(function(){ $("button").click(function(){ $("p").css({"background-color":"yellow","font-size":"200%"}); }); }); </script> </head> <body> <h2>This is a heading</h2> <p style="background-color:#ff0000">This is a paragraph.</p> <p style="background-color:#00ff00">This is a paragraph.</p> <p style="background-color:#0000ff">This is a paragraph.</p> <p>This is a paragraph.</p> <button>Set multiple styles for p</button> </body> </html> //该代码片段来自于: http://www.sharejs.com/codes/javascript/8121
原文：http://www.cnblogs.com/VinceYang1994/p/4365931.html