解决IE9以下ie版本不能识别新元素的方法 添加一个js -- Shiv Solution
Thankfully, Sjoerd Visscher created the "HTML5 Enabling JavaScript", "the shiv":
<script src="https://cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.js"></script>
<![endif]-->
The code above is a comment, but versions previous to IE9 will read it (and understand it).
Adding New Elements to HTML
You can add any new element to HTML with a browser trick:
This example adds a new element called <myHero> to HTML, and defines a display style for it:
<!DOCTYPE html>
<html>
<head>
  <title>Creating an HTML Element</title>
  <script>document.createElement("myHero")</script>
  <style>
  myHero {
      display: block;
      
      padding: 50px;
      font-size: 30px;
  } 
  </style> 
<!--[if lt IE 9]>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.js"></script>
<![endif]-->
</head>
<body>
<h1>My First Heading</h1>
<p>My first paragraph.</p>
<myHero>My First Hero</myHero>
</body>
</html>
                    
                
                
            
        
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