<!DOCTYPE html>
<html>
<head>
<title>Email Inbox Task</title>
<!-- credit to flaticon.com for the icons used in this task. -->
<!-- stylesheets -->
<link rel="stylesheet" type="text/css" href="../core/core.css">
<!-- JS -->
<script src="../core/core.js"></script>
<script src="../core/jquery-ui/external/jquery/jquery.js"></script>
<script src="../common/ui_utils.js"></script>
<script src="../common/special/navigate-tree/jquery.treeview.min.js"></script>

<style>
#main { height: 150px; width: 155px; overflow-