index.html

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <meta id="viewport" name="viewport" content="width=device-width,initial-scale=1,user-scalable=no"/>
    <title>ele</title>
    <style>
			* {
				margin: 0;
				padding: 0;
			}
			html,body{
				width: 100%;
				height: 100%;
				font-family: 'Helvetica Neue',Tahoma,Arial,PingFangSC-Regular,'Hiragino Sans GB','Microsoft Yahei',sans-serif;
				-webkit-font-smoothing: antialiased;
			}
      #box{
        height:100%;
      }
	</style>
  </head>
  <body>
    <div id="box"></div>
    <!-- built files will be auto injected -->

    
    <script type="text/javascript">
    	document.documentElement.style.fontSize=document.documentElement.clientWidth/640*100+"px";
    </script>
    <script type="text/javascript" src="/dist/index.bundle.js"></script>
  </body>
</html>