<div class="createAcc">
    <div class="container">
        <div class="row">
            <div class="col-md-4 col-md-offset-4">
                <div class="panel">
                    <h2>Page Not Found!</h2>
                    <p><strong>Sorry, we weren't able to find the page you requested.</strong></p>
                    <p><strong><em>Suggestions:</em></strong></p>
                    <ul>
                        <li><a href="<?php echo site_url(); ?>">Main Page</a></li>
                        <li><a href="javascript:void(0);" onclick="history.go(-1);">Go back to the previous page</a></li>
                    </ul>
                </div>
            </div>
        </div>
    </div>
</div>