让 IE6/7/8 也支持HTML5标签的方式

方式一：引入Google的HTML5.js线上文件

<!–[if lt IE9]> 
<script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]–>

方式二：自定义

<script> 
   (function() {
     if (! 
     /*@cc_on!@*/
     0) return;
     var e = "abbr, article, aside, audio, canvas, datalist, details, dialog, eventsource, figure, footer, header, hgroup, mark, menu, meter, nav, output, progress, section, time, video".split(', ');
     var i= e.length;
     while (i--){
         document.createElement(e[i])
     } 
})() 
</script>

自定义方式同时ＣＳＳ需定义如下：

article,aside,dialog,footer,header,section,footer,nav,figure,menu{display:block}