<div class="navbar border-bottom border-b border-grey-light mb-6" role="banner">
    <header class="container mx-auto px-4">
        <div class="sm:flex">
            <div class="w-full sm:w-1/3 lg:w-1/4 flex items-center">
                <div class="w-3/4 py-5">
                    <a href="/" title="Home" class="text-grey-darkest no-underline hover:underline">
                        {{ site.title }}
                    </a>
                </div>

                <div class="w-1/4 text-right sm:hidden">
                    <button type="button" class="nav-toggle appearance-none">
                        <svg class="fill-current text-grey-dark w-6 h-6" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20"><path d="M16.4 9H3.6c-.552 0-.6.447-.6 1 0 .553.048 1 .6 1h12.8c.552 0 .6-.447.6-1 0-.553-.048-1-.6-1zm0 4H3.6c-.552 0-.6.447-.6 1 0 .553.048 1 .6 1h12.8c.552 0 .6-.447.6-1 0-.553-.048-1-.6-1zM3.6 7h12.8c.552 0 .6-.447.6-1 0-.553-.048-1-.6-1H3.6c-.552 0-.6.447-.6 1 0 .553.048 1 .6 1z"/></svg>
                    </button>
                </div>
            </div>

            <nav class="hidden block w-full -mx-4 sm:w-2/3 lg:w-3/4 sm:flex sm:flex-wrap sm:justify-end bg-white absolute sm:relative mt-px border-b sm:border-b-0" role="navigation">
                {% include 'nav-item' with {
                    title: 'About',
                    href: '/',
                    pattern: '^/.$',
                } %}

                {% include 'nav-item' with {
                    title: 'Talks',
                    href: '/talks',
                    pattern: '^/talks/?',
                } %}

                {% include 'nav-item' with {
                    title: 'Blog',
                    href: '/blog',
                    pattern: '^/blog/?',
                } %}

                {% include 'nav-item' with {
                    title: 'Book',
                    href: '/test-driven-drupal',
                    pattern: '^/test-driven-drupal/?$',
                } %}

                {% include 'nav-item' with {
                    title: 'Contact',
                    href: '/contact',
                    pattern: '^/contact/?',
                } %}
            </nav>
        </div>
    </header>
</div>