H5 element to solve the problem under ie8 compatibility

• <Header> or custom page header section;
• Tail <footer> define the page or segment;
• <Nav> navigation area defined page or segment;
• Logic region or a combination of content <section> of the page;
• <Article> define a body or a complete;
• <Aside> defines supplemental or related content;

Ⅰ. 

<!--[if lt IE 9]> 
<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>
<![endif]-->

　　

<!--[if lt IE 9]> 
<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>

<![endif]-->