diff --git a/openlp/core/lib/htmlbuilder.py b/openlp/core/lib/htmlbuilder.py
index 7d91195a7..863943e40 100644
--- a/openlp/core/lib/htmlbuilder.py
+++ b/openlp/core/lib/htmlbuilder.py
@@ -338,7 +338,7 @@ def build_html(item, screen, islive, background, image=None,
     html = HTMLSRC % (build_background_css(item, width, height),
         width, height,
         css_additions,
-         build_footer_css(item, height),
+        build_footer_css(item, height),
         build_lyrics_css(item, webkitvers),
         u'true' if theme and theme.display_slide_transition and islive \
             else u'false',
diff --git a/openlp/core/lib/plugin.py b/openlp/core/lib/plugin.py
index 9a5d2d547..ad6f77116 100644
--- a/openlp/core/lib/plugin.py
+++ b/openlp/core/lib/plugin.py
@@ -371,25 +371,25 @@ class Plugin(QtCore.QObject):
 
     def getDisplayCss(self):
         """
-        Add css style sheets to htmlbuilder
+        Add css style sheets to htmlbuilder.
         """
         return u''
 
     def getDisplayJavaScript(self):
         """
-        Add javascript functions to htmlbuilder
+        Add javascript functions to htmlbuilder.
         """
         return u''
 
     def refreshCss(self, frame):
         """
-        Allow plugins to refresh javascript of displayed screen
+        Allow plugins to refresh javascript on displayed screen.
         """
         return u''
 
     def getDisplayHtml(self):
         """
-        Add html code to htmlbuilder
+        Add html code to htmlbuilder.
         """
         return u''
 
diff --git a/openlp/plugins/alerts/alertsplugin.py b/openlp/plugins/alerts/alertsplugin.py
index 461525a70..594649e53 100644
--- a/openlp/plugins/alerts/alertsplugin.py
+++ b/openlp/plugins/alerts/alertsplugin.py
@@ -183,10 +183,9 @@ class AlertsPlugin(Plugin):
 
     def getDisplayCss(self):
         align = VerticalType.Names[self.settings_tab.location]
-        alert = CSS % (align, self.settings_tab.font_face,
+        return CSS % (align, self.settings_tab.font_face,
             self.settings_tab.font_size, self.settings_tab.font_color,
             self.settings_tab.bg_color)
-        return alert
 
     def getDisplayHtml(self):
         return HTML