Support theming #header-logo

refs #10705

application/layouts/scripts/body.phtml

@@ -18,14 +18,15 @@ if ($this->layout()->autorefreshInterval) {
 
 ?>
 <div id="header">
-  <div id="logo">
+  <div id="header-logo-container">
     <?= $this->qlink(
       '',
       Auth::getInstance()->isAuthenticated() ? 'dashboard' : '',
       null,
       array(
-        'data-base-target'  => '_main',
         'aria-hidden'       => 'true',
+        'data-base-target'  => '_main',
+        'id'                => 'header-logo',
         'tabindex'          => -1
       )
     ); ?>

public/css/icinga/layout.less

@@ -40,7 +40,7 @@
   font-family: @font-family;
 }
 
-#logo {
+#header-logo-container {
   height: 4em;
   margin-left: 1.5em;
   margin-top: 0.2em;
@@ -48,7 +48,7 @@
   width: 100px;
 }
 
-#logo > a {
+#header-logo {
   background-image: url('../img/logo_icinga-inv.png');
   background-position: center;
   background-repeat: no-repeat;