IE11对ie的好多地方进行了修改，兼容了标准，userAgent改变，但其实感觉它已经不是ie了。

改变参照学习链接：   

修改后的js代码：

/** * Usually used browser compatibility.
 * Get browser name agent version.
 * return browser name and version.
 * return eg：ie9.0、ie11.0、firefox34.0、chrome37.0 * */function getBrowserNV(){		 var agent = navigator.userAgent.toLowerCase();		 var regStr_ie = /msie [\d.]+/gi ;		 var regStr_ff = /firefox\/[\d.]+/gi		 var regStr_chrome = /chrome\/[\d.]+/gi ;		 var regStr_saf = /safari\/[\d.]+/gi ;		 var browserNV = "";		 //IE		 if(agent.indexOf("msie") > 0){			 browserNV = agent.match(regStr_ie) ;		 }		 //firefox		 if(agent.indexOf("firefox") > 0){			 browserNV = agent.match(regStr_ff) ;		 }		 //Chrome		 if(agent.indexOf("chrome") > 0){			 browserNV = agent.match(regStr_chrome) ;		 }		 //Safari		 if(agent.indexOf("safari") > 0 && agent.indexOf("chrome") < 0){			 browserNV = agent.match(regStr_saf) ;		 }		 browserNV = browserNV.toString();		 //other		 if(""==browserNV){			 browserNV  = "Is not a standard browser";		 }		 //Here does not display "/"		 if(browserNV.indexOf('firefox')!= -1 || browserNV.indexOf('chrome')!= -1){			 browserNV = browserNV.replace("/","");		 }		 //Here does not display space		 if(browserNV.indexOf('msie')!= -1){			//msie replace IE & trim space			browserNV = browserNV.replace("msie","ie").replace(/\s/g,"");		 }		 if(browserNV == "Is not a standard browser"){			 if(isIE()){				 browserNV = "ie11.0";			 }		 }		 //return eg:ie9.0 firefox34.0 chrome37.0		return browserNV;}//IE11function isIE() { //IE    if (!!window.ActiveXObject || "ActiveXObject" in window)        return true;    else        return false;}

使用代码：

//标签的css样兼容解决		var bnv = getBrowserNV().toString();		if(bnv.indexOf("ie") != -1 || bnv.indexOf("chrome") != -1){			$("#attentiondiv").find("dd").addClass("attentdd");			$("#attentiondiv").find(".no_dt").addClass("attentnodt");		}