Index: public/stylesheets/application.css
===================================================================
--- public/stylesheets/application.css	(Revision 17727)
+++ public/stylesheets/application.css	(Arbeitskopie)
@@ -496,8 +496,23 @@
 fieldset#filters td.values select {min-width:130px;}
 fieldset#filters td.values input {height:1em;}
 
-#filters-table {width:60%; float:left;}
-.add-filter {width:35%; float:right; text-align: right; vertical-align: top;}
+#filters-table {display: block;}
+.add-filter { margin: 5px 0;}
+.add-filter label { display: none }
+.add-filter select {
+  appearance: none;
+  -moz-appearance: none;
+  -webkit-appearance: none;
+  border: 1px solid #ccc;
+  border-radius: 3px;
+  background: #fff;
+  padding: 3px 2px;
+  margin-bottom: 10px;
+  color: #555555;
+  text-align: center;
+  font-size: 1rem;
+  width: 150px;
+}
 
 #issue_is_private_wrap {float:right; margin-right:1em;}
 .toggle-multiselect {background: url(../images/bullet_toggle_plus.png) no-repeat 0% 40%; padding-left:16px; margin-left:0; margin-right:5px; cursor:pointer;}
Index: app/helpers/queries_helper.rb
===================================================================
--- app/helpers/queries_helper.rb	(Revision 17727)
+++ app/helpers/queries_helper.rb	(Arbeitskopie)
@@ -50,7 +50,7 @@
     if grouped[:label_date].try(:size) == 1
       ungrouped << grouped.delete(:label_date).first
     end
-    s = options_for_select([[]] + ungrouped)
+    s = options_for_select(ungrouped)
     if grouped.present?
       localized_grouped = grouped.map {|k,v| [k.is_a?(Symbol) ? l(k) : k.to_s, v]}
       s << grouped_options_for_select(localized_grouped)
Index: app/views/queries/_filters.html.erb
===================================================================
--- app/views/queries/_filters.html.erb	(Revision 17727)
+++ app/views/queries/_filters.html.erb	(Arbeitskopie)
@@ -18,8 +18,7 @@
 </table>
 
 <div class="add-filter">
-<%= label_tag('add_filter_select', l(:label_filter_add)) %>
-<%= select_tag 'add_filter_select', filters_options_for_select(query), :name => nil %>
+  <%= select_tag 'add_filter_select', filters_options_for_select(query), { prompt: l(:label_filter_add) } %>
 </div>
 
 <%= hidden_field_tag 'f[]', '' %>