Add platform class to main-ui-view

app/assets/javascripts/app/controllers/home.js

@@ -4,6 +4,22 @@ angular.module('app')
 
     storageManager.initialize(passcodeManager.hasPasscode(), authManager.isEphemeralSession());
 
+    try {
+      $scope.platform = function() {
+        var platform = navigator.platform.toLowerCase();
+        var trimmed = "";
+        if(platform.indexOf("mac") !== -1) {
+          trimmed = "mac";
+        } else if(platform.indexOf("win") !== -1) {
+          trimmed = "windows";
+        } if(platform.indexOf("linux") !== -1) {
+          trimmed = "linux";
+        }
+
+        return trimmed + (isDesktopApplication() ? "-desktop" : "-web");
+      }();
+    } catch (e) {}
+
     $scope.onUpdateAvailable = function(version) {
       $rootScope.$broadcast('new-update-available', version);
     }

app/assets/templates/home.html.haml

@@ -1,4 +1,4 @@
-.main-ui-view
+.main-ui-view{"ng-class" => "platform"}
   %lock-screen{"ng-if" => "needsUnlock", "on-success" => "onSuccessfulUnlock"}
   .app#app{"ng-if" => "!needsUnlock"}
     %tags-section{"save" => "tagsSave", "add-new" => "tagsAddNew", "will-select" => "tagsWillMakeSelection", "selection-made" => "tagsSelectionMade",