JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<div class="container">
    <div class="row">
        <div class="col-md-6 col-md-offset-3">
            <h3>Login Form With Modal Bootstrap</h3>

            <button type="button" class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">
                Login
            </button>

            <div id="myModal" class="modal fade">
                <div id="login-overlay" class="modal-dialog">
                    <div class="modal-content">
                        <div class="modal-header">
                            <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
                            <h4 class="modal-title" id="myModalLabel">Login</h4>
                        </div>
                        <div class="modal-body">
                            <div class="row">
                                <div class="col-xs-12">
                                    <div class="well">
                                        <form id="loginForm" method="POST">
                                            <div class="form-group">
                                                <label for="username" class="control-label">Username</label>
                                                <input type="text" class="form-control" id="username" required="" placeholder="example@gmail.com">
                                                    <span class="help-block"></span>
                                                    </div>
                                                <div class="form-group">
                                                    <label for="password" class="control-label">Password</label>
...