>
            <div class="mdl-layout__header-row portfolio-logo-row">
                <span class="mdl-layout__title">
                    <div class="portfolio-logo"></div>
                    <span class="mdl-layout__title">Simple portfolio website</span>
                </span>
            </div>
            <div class="mdl-layout__header-row portfolio-navigation-row mdl-layout--large-screen-only">
                <nav class="mdl-navigation mdl-typography--body-1-force-preferred-font">
                  