Onsen UI is an open-source framework that helps you build hybrid apps with native like performance. It can be used along with several well known JavaScript frameworks such as AngularJS (1 & 2), ReactJS and jQuery.
Loading OnsenUI in a project is as easy as writing some standard tags of HTML in your index.html file:
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<!-- load Onsen structure CSS file -->
<link rel="stylesheet" href="lib/onsen/css/onsenui.css"/>
<!-- load Onsen theme CSS file -->
<link rel="stylesheet" href="lib/onsen/css/onsen-css-components.css"/>
<!-- load Onsen main Javascript file -->
<script src="lib/onsen/js/onsenui.js"></script>
<script>
ons.ready(function() {
// Init code here
});
</script>
</head>
<body>
<ons-navigator>
<ons-page>
Hello World!
</ons-page>
</ons-navigator>
</body>
</html>
ons.ready
function is the main function that can safely tell us when Onsen UI initialization is done. Then you can use any of OnsenUI components.