<div class="demo-container" mdl-shadow="2">
	<mdl-layout mdl-layout-fixed-header mdl-layout-header-seamed>
		<mdl-layout-header>
			<mdl-layout-header-row>
				<mdl-layout-title>
          <a class="mdl-navigation__link" routerLink="/apps" routerLinkActive="active">{{title}}</a>
        </mdl-layout-title>
				<mdl-layout-spacer></mdl-layout-spacer>
				<!-- Navigation. We hide it in small screens. -->
				<nav class="mdl-navigation mdl-layout--large-screen-only">
					<a class="mdl-navigation__link">Link 1</a>
					<a class="mdl-navigation__link">Link 2</a>
					<a class="mdl-navigation__link">Link 3</a>
				</nav>
			</mdl-layout-header-row>
		</mdl-layout-header>
		<mdl-layout-drawer>
			<mdl-layout-title>{{title}}</mdl-layout-title>
			<nav class="mdl-navigation">
				<a class="mdl-navigation__link">Link</a>
				<a class="mdl-navigation__link">Link</a>
				<a class="mdl-navigation__link">Link</a>
			</nav>
		</mdl-layout-drawer>

		<mdl-layout-content>
			<!-- Your content goes here -->
			<router-outlet></router-outlet>
			<flathub-footer></flathub-footer>
		</mdl-layout-content>

	</mdl-layout>
</div>

<div class="demo-container" mdl-shadow="2">
	<mdl-layout mdl-layout-fixed-header mdl-layout-header-seamed>
		<mdl-layout-header>
			<mdl-layout-header-row>
				<mdl-layout-title>
					<a class="mdl-navigation__link" routerLink="/apps" routerLinkActive="active">{{title}}</a>
				</mdl-layout-title>
				<mdl-layout-spacer></mdl-layout-spacer>
				<!-- Navigation. We hide it in small screens. -->
				<nav class="mdl-navigation mdl-layout--large-screen-only">
          <button mdl-button mdl-button-type="raised" mdl-colored="accent">
            Sign in
          </button>
				</nav>
			</mdl-layout-header-row>
		</mdl-layout-header>
		<mdl-layout-drawer>
			<mdl-layout-title>{{title}}</mdl-layout-title>
			<nav class="mdl-navigation">
				<a class="mdl-navigation__link">Link</a>
				<a class="mdl-navigation__link">Link</a>
				<a class="mdl-navigation__link">Link</a>
			</nav>
		</mdl-layout-drawer>

		<mdl-layout-content>
			<!-- Your content goes here -->
			<router-outlet></router-outlet>
			<flathub-footer></flathub-footer>
		</mdl-layout-content>

	</mdl-layout>
</div>

Add SING IN button in header
Add SING IN button in header
