app/common/directives/app-navigation.html

<nav class="nav__wrapper">
	<ul id="nav__top-level" ng-style="navStyle">
		<li>
			<a class="btn-overview" ng-class="{opened: firstLevel == 'overview'}" href="#/overview/server" ng-click="change('overview')" tabindex="1">
				<span class="">
					<svg version="1.1" xmlns="http://www.w3.org/2000/svg" x="0px" y="0px" viewBox="0 0 40 40" style="enable-background:new 0 0 40 40;" xml:space="preserve" class="nav-icon">
						<path d="M23.9,18.2l3.3,3.3l1.1-1.1L23.9,16l-7.8,7.8l-3.3-3.3l-1.1,1.1l4.4,4.4L23.9,18.2z"/>
						<path d="M5,8v24h30V8H5z M33,30H7V12h26V30z"/>
					</svg>
					Server overview</span></a>
		</li>
		<li>
			<button class="btn-health" ng-class="{opened: firstLevel == 'server-health'}" ng-click="change('server-health')" tabindex="2">
				<span>
					<svg version="1.1" xmlns="http://www.w3.org/2000/svg" x="0px" y="0px" viewBox="0 0 40 40" style="enable-background:new 0 0 40 40;" xml:space="preserve" class="nav-icon">
						<polyline class="st0" points="32,12.9 32,16 8,16 8,8 27,8 "/>
						<rect x="8" y="16" class="st0" width="24" height="8"/>
						<rect x="8" y="24" class="st0" width="24" height="8"/>
						<line class="st0" x1="19" y1="12" x2="27" y2="12"/>
						<line class="st0" x1="11" y1="12" x2="13" y2="12"/>
						<line class="st0" x1="19" y1="20" x2="27" y2="20"/>
						<line class="st0" x1="11" y1="20" x2="13" y2="20"/>
						<line class="st0" x1="19" y1="28" x2="27" y2="28"/>
						<line class="st0" x1="11" y1="28" x2="13" y2="28"/>
						<polygon points="36.4,4 37.5,5.1 32.4,10.2 29.5,7.4 30.7,6.2 32.4,8 "/>
					</svg>
					Server health
				</span>
			</button>
		</li>
		<li>
			<button class="btn-control" ng-class="{opened: firstLevel == 'server-control'}" ng-click="change('server-control')" tabindex="3">
				<span>
					<svg version="1.1" xmlns="http://www.w3.org/2000/svg" x="0px" y="0px" viewBox="0 0 40 40" style="enable-background:new 0 0 40 40;" xml:space="preserve" class="nav-icon">
						<line class="st0" x1="8" y1="12" x2="32" y2="12"/>
						<line class="st0" x1="8" y1="20" x2="32" y2="20"/>
						<line class="st0" x1="8" y1="28" x2="32" y2="28"/>
						<line class="st1" x1="24" y1="28" x2="28" y2="28"/>
						<line class="st1" x1="18" y1="20" x2="22" y2="20"/>
						<line class="st1" x1="12" y1="12" x2="16" y2="12"/>
					</svg>
					Server control
				</span>
			</button>
		</li>
		<li>
			<button class="btn-config" ng-class="{opened: firstLevel == 'configuration'}" ng-click="change('configuration')" tabindex="4">
			<span>
				<svg version="1.1" xmlns="http://www.w3.org/2000/svg" x="0px" y="0px" viewBox="0 0 40 40" style="enable-background:new 0 0 40 40;" xml:space="preserve" class="nav-icon">
					<path d="M31.5,20c0-0.6-0.1-1.2-0.2-1.8L35,15l-3.1-5.1l-4.4,1.4c-1.1-0.9-2.3-1.6-3.6-2.1L23,5h-6l-1,4.2c-1.3,0.5-2.5,1.2-3.6,2.1
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						l1.4,2.3L30,16.7l-0.8,0.7l0.2,1.1c0.1,0.6,0.1,1,0.1,1.5s0,0.9-0.1,1.5l-0.2,1.1l0.8,0.7L32.4,25.4z"/>
					<path d="M20,15c-2.8,0-5,2.2-5,5s2.2,5,5,5s5-2.2,5-5S22.8,15,20,15z M20,23c-1.7,0-3-1.3-3-3c0-1.7,1.3-3,3-3c1.7,0,3,1.3,3,3C23,21.7,21.7,23,20,23z"/>
				</svg>
				Server Configuration</span></button>
		</li>
		<li>
			<button class="btn-users" ng-class="{opened: firstLevel == 'users'}" ng-click="change('users')" tabindex="5">
				<span><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32" class="nav-icon"><path d="M16 21c5.523 0 10-4.477 10-10S21.523 1 16 1 6 5.477 6 11s4.477 10 10 10zm0-18c4.411 0 8 3.589 8 8s-3.589 8-8 8-8-3.589-8-8 3.589-8 8-8zM24 23H8a4 4 0 0 0-4 4v4h24v-4a4 4 0 0 0-4-4z"/></svg></span>
				<span>Users</span>
			</button>
		</li>
		<!--<li class="btn-multi-server">
			<a ng-class="{opened: firstLevel == 'multi-server'}" href="#/multi-server/overview" ng-click="change('multi-server')" tabindex="6">
				<span>
					<svg class="nav-icon" version="1.1" xmlns="http://www.w3.org/2000/svg" x="0px" y="0px" viewBox="0 0 24 24" xml:space="preserve">
<path d="M12.8,7.3h4c0.2,1.5,1.5,2.8,3.1,2.8c1.7,0,3.1-1.4,3.1-3.1s-1.4-3.1-3.1-3.1c-1.5,0-2.7,1-3,2.4h-4C12.4,3.3,9.9,1,6.9,1
	C3.7,1,1,3.6,1,6.9c0,0,0,0,0,0c0,3.1,2.4,5.7,5.5,5.9v4c-1.3,0.4-2.4,1.6-2.4,3c0,1.7,1.4,3.1,3.1,3.1s3.1-1.4,3.1-3.1
	c0-1.6-1.2-2.9-2.8-3.1v-4c1.1-0.2,2.1-0.6,2.9-1.3l4.7,4.7c-0.4,0.5-0.6,1.1-0.6,1.8c0,1.7,1.4,3.1,3.1,3.1c1.7,0,3.1-1.4,3.1-3.1
	c0-1.7-1.4-3.1-3.1-3.1c-0.6,0-1.3,0.2-1.8,0.6l-4.7-4.7C12.2,9.7,12.7,8.5,12.8,7.3z M2.2,6.9c0-2.6,2.1-4.7,4.7-4.7
	s4.7,2.1,4.7,4.7s-2.1,4.7-4.7,4.7S2.2,9.5,2.2,6.9z"/>
</svg>
				All Servers</span></a>
		</li> -->
	</ul>
	<ul class="nav__second-level btn-health" ng-style="navStyle" ng-class="{opened: (showSubMenu && firstLevel == 'server-health')}">
		<li ng-class="{'active': (path == '/server-health/event-log')}">
			<a href="#/server-health/event-log" tabindex="6" ng-click="closeSubnav()">Event log</a></li>
		<li ng-class="{'active': (path == '/server-health/inventory-overview' || path == '/server-health/inventory')}" ng-click="closeSubnav()">
			<a href="#/server-health/inventory-overview" tabindex="7">Hardware status</a></li>
		<li ng-class="{'active': (path == '/server-health/sensors-overview' || path == '/server-health/sensors')}">
			<a href="#/server-health/sensors-overview" ng-click="closeSubnav()" tabindex="8">Sensors</a></li>
	</ul>
	<ul class="nav__second-level btn-control" ng-style="navStyle" ng-class="{opened: (showSubMenu && firstLevel == 'server-control')}">
		<li ng-class="{'active': (path == '/server-control' || path == '/server-control/power-operations')}">
			<a href="#/server-control/power-operations" tabindex="9" ng-click="closeSubnav()">Server power operations</a>
		</li>
		<li ng-class="{'active': (path == '/server-control/server-led')}">
			<a href="#/server-control/server-led" tabindex="10" ng-click="closeSubnav()">Server LED</a></li>
		<li ng-class="{'active': (path == '/server-control/bmc-reboot')}">
			<a href="#/server-control/bmc-reboot" tabindex="11" ng-click="closeSubnav()">Reboot BMC</a></li>
		<li ng-class="{'active': (path == '/server-control/remote-console')}">
			<a href="#/server-control/remote-console" tabindex="12" ng-click="closeSubnav()">Serial over LAN</a></li>
	</ul>
	<ul class="nav__second-level btn-firmware" ng-style="navStyle" ng-class="{opened: (showSubMenu && firstLevel == 'configuration')}">
		<li ng-class="{'active': (path == '/configuration' || path == '/configuration/network')}">
			<a href="#/configuration/network" tabindex="13" ng-click="closeSubnav()">Network settings</a></li>
		<li ng-class="{'active': (path == '/configuration' || path == '/configuration/firmware')}">
			<a href="#/configuration/firmware" tabindex="14" ng-click="closeSubnav()">Firmware</a></li>
	</ul>
	<ul class="nav__second-level btn-users" ng-style="navStyle" ng-class="{opened: (showSubMenu && firstLevel == 'users')}">
		<li ng-class="{'active': (path == '/users' || path == '/users/manage-accounts')}">
			<a href="#/users/manage-accounts" tabindex="15" ng-click="closeSubnav()">Manage user account</a></li>
	</ul>
</nav>