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/system" ng-click="change('overview')" tabindex="1">
				<span class="">
					<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" 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" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" 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" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" 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" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" 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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					<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>
				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>
	</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="3" 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="4">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="5">Sensors</a></li>
		<!--<li ng-class="{'active': (path == '/server-health/power-consumption')}"><a href="#/server-health/power-consumption" tabindex="4" ng-click="closeSubnav()">Power consumption</a></li>-->
		<li ng-class="{'active': (path == '/server-health/unit-id')}">
			<a href="#/server-health/unit-id" tabindex="6" ng-click="closeSubnav()">Server LED</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" ng-click="closeSubnav()">Server power operations</a></li>
		<li ng-class="{'active': (path == '/server-control/bmc-reboot')}">
			<a href="#/server-control/bmc-reboot" tabindex="8" ng-click="closeSubnav()">Reboot BMC</a></li>
		<li ng-class="{'active': (path == '/server-control/remote-console')}">
			<a href="#/server-control/remote-console" tabindex="5" 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" ng-click="closeSubnav()">Network settings</a></li>
		<li ng-class="{'active': (path == '/configuration' || path == '/configuration/firmware')}">
			<a href="#/configuration/firmware" 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" ng-click="closeSubnav()">Manage user account</a></li>
	</ul>
</nav>