top-bar.php

<header>
    <nav class="navbar navbar-default navbar-fixed-top">
        <div class="container">
            <div class="navbar-header">
                <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
                    <span class="sr-only">Toggle navigation</span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                </button>
                <a class="navbar-brand" href="#">Project name</a>
            </div>
            <div id="navbar" class="navbar-collapse collapse">
            <form class="navbar-form navbar-right">
                <div class="form-group">
                    <input type="text" placeholder="Email" class="form-control">
                </div>
                <div class="form-group">
                    <input type="password" placeholder="Password" class="form-control">
                </div>
                <button type="submit" class="btn btn-success">Sign in</button>
            </form>
            </div><!--/.navbar-collapse -->
        </div>
    </nav>
</header>
<div class="clearfix"></div>