popup.html

<!doctype html>
<html>
<head>
    <meta charset="utf-8">
    <title>Pinkfire</title>
    <link href="bootstrap.min.css" rel="stylesheet" media="screen">
    <link href="custom.css" rel="stylesheet" media="screen">
</head>
<body>
<div class="container">
    <div class="row">
        <div class="col-lg-12">
            <h2><img alt="Brand" width="30" height="30" src="icon.png"> Pinkfire</h2>
            <form class="form-horizontal">
                <div class="form-group">
                    <label for="server" class="col-sm-2 control-label">Target</label>
                    <div class="col-sm-2">
                        <input type="text" class="form-control" id="server">
                    </div>
                </div>
                <div class="form-group">
                    <label for="channel" class="col-sm-2 control-label">Channel</label>
                    <div class="col-sm-10">
                        <input type="text" class="form-control" id="channel" placeholder="Set your custom channel here">
                    </div>
                </div>
                <a href="#" id="pinkfire-go" class="btn btn-primary" target="_blank">Fire !</a>
            </form>
        </div>
    </div>
</div>
<script src='jquery-2.1.3.min.js'></script>
<script src='popup.js'></script>
</body>
</html>