A $("li:first-child").hide();
B $("li: first-child").hide();
B $("li: first-child").hide();
$("ul p").css("color","#f00");的结果是:内容的颜色改变了,但li前面的list-style-type样式没有改变颜色。很奇妙。
2015-07-20
最新回答 / 追梦人物
$.getJSON("http://www.imooc.com/data/sport.json",function(data){ $this.attr("disabled", "true"); $.each(data, function (index, sport) { if(index==3) $("ul"...
2015-07-20
最新回答 / qq_子都_0
<!DOCTYPE html><html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <script src="http://libs.baidu.com/jquery/1.9.0/jquery.js" type="text/javascript"></script> &l...
2015-07-20