JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>JS Bin</title>
</head>
<body>
  <div id="main">
    <embed width="100%" height="100%" name="plugin" src="http://wonderfl.net/swf/index_en.swf?1283486452" type="application/x-shockwave-flash">
 <div id="apDiv2"></div>
  </div>
        
</body>
</html>

CSS

#main{
 position: relative; 
    margin:0 auto;
width: 920px;
    height: 320px;

}
#apDiv2 {
        position: absolute;
        left: 53%;
        top: 100px;
        width: 387px;
        height: 159px;
        z-index: 1;
        background-color: #fff;
        background-image: url(...) ;
}