<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Dart DropDown Menu Example</title>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div id="menu-dropdown">Menu▼</div>
<div id="menuDiv-dropdown" class="invisible">
content<br>content<br>content
</div>
<script type='text/javascript'>
var script = document.createElement('script');
if (navigator.userAgent.indexOf('(Dart)') === -1) {
// Browser doesn't support Dart
script.setAttribute("type","text/javascript");
script.setAttribute("src", "app.js");
} else {
script.setAttribute("type","application/dart");
script.setAttribute("src", "app.dart");
}
document.getElementsByTagName("head")[0].appendChild(script);
</script>
</body>
</html>