header

<header>
    <div class="navbar navbar-default navbar-fixed-top text-uppercase">
        <div class="container">
            <div class="navbar-header">
                <a href="index.html" class="navbar-brand">SoftUni Blog</a>
                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                </button>
            </div>
            <div class="navbar-collapse collapse">
                <ul class="nav navbar-nav navbar-right">
                    <li><a href="htmlFiles/registerpage.html">Register</a></li>
                    <li><a href="htmlFiles/loginpage.html">Login</a></li>
                </ul>
            </div>
        </div>
    </div>
</header>