<header class=“demo-header mdl-layout__header mdl-layout__header–scroll mdl-color–grey-100 mdl-color-text–grey-800”>
<div class="mdl-layout__header-row"> {% if page.title %} <span class="mdl-layout-title">{{ page.title }}</span> {% else %} <span class="mdl-layout-title">{{ site.title }}</span> {% endif %} <div class="mdl-layout-spacer"></div> </div>
</header>