diff --git a/src/business/business-gnome/dialog-billterms.c b/src/business/business-gnome/dialog-billterms.c
index ce2ad27d19..789cb114c2 100644
--- a/src/business/business-gnome/dialog-billterms.c
+++ b/src/business/business-gnome/dialog-billterms.c
@@ -135,6 +135,9 @@ init_notebook_widgets (BillTermNB *notebook, gboolean read_only,
     notebook->notebook = GTK_WIDGET(gtk_builder_get_object (builder, "term_notebook"));
     parent = GTK_WIDGET(gtk_builder_get_object (builder, "terms_notebook_window"));
 
+    // Set the style context for this dialog so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(notebook->notebook), "GncBillTermsDialog");
+
     /* load the "days" widgets */
     notebook->days_due_days = read_widget (builder, "days:due_days", read_only);
     notebook->days_disc_days = read_widget (builder, "days:discount_days", read_only);
@@ -436,6 +439,10 @@ new_billterm_dialog (BillTermsWindow *btw, GncBillTerm *term,
     nbt->dialog = GTK_WIDGET(gtk_builder_get_object (builder, dialog_name));
     nbt->name_entry = GTK_WIDGET(gtk_builder_get_object (builder, "name_entry"));
     nbt->desc_entry = GTK_WIDGET(gtk_builder_get_object (builder, dialog_desc));
+
+    // Set the style context for this dialog so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(nbt->dialog), "GncBillTermsDialog");
+
     if (name)
         gtk_entry_set_text (GTK_ENTRY (nbt->name_entry), name);
 
@@ -773,6 +780,9 @@ gnc_ui_billterms_window_new (QofBook *book)
     btw->type_label = GTK_WIDGET(gtk_builder_get_object (builder, "type_label"));
     btw->term_vbox = GTK_WIDGET(gtk_builder_get_object (builder, "term_vbox"));
 
+    // Set the style context for this dialog so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(btw->dialog), "GncBillTermsDialog");
+
     /* Initialize the view */
     view = GTK_TREE_VIEW(btw->terms_view);
     store = gtk_list_store_new (NUM_BILL_TERM_COLS, G_TYPE_STRING, G_TYPE_POINTER);
diff --git a/src/business/business-gnome/dialog-choose-owner.c b/src/business/business-gnome/dialog-choose-owner.c
index 91be7ad175..ce702f918f 100644
--- a/src/business/business-gnome/dialog-choose-owner.c
+++ b/src/business/business-gnome/dialog-choose-owner.c
@@ -66,6 +66,9 @@ gcoi_create_dialog(Split* split)
     dco->dialog = GTK_WIDGET(gtk_builder_get_object (builder, "choose_owner_dialog"));
     g_assert(dco->dialog);
 
+    // Set the style context for this dialog so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(dco->dialog), "GncChooseOwnerDialog");
+
     /* Get the title widget and set the title */
     widget = GTK_WIDGET(gtk_builder_get_object (builder, "title_label"));
     if (1 == 1)
diff --git a/src/business/business-gnome/dialog-customer.c b/src/business/business-gnome/dialog-customer.c
index 2d4f189028..ed94f86662 100644
--- a/src/business/business-gnome/dialog-customer.c
+++ b/src/business/business-gnome/dialog-customer.c
@@ -575,6 +575,9 @@ gnc_customer_new_window (QofBook *bookp, GncCustomer *cust)
     gnc_builder_add_from_file (builder, "dialog-customer.glade", "customer_dialog");
     cw->dialog = GTK_WIDGET (gtk_builder_get_object (builder, "customer_dialog"));
 
+    // Set the style context for this dialog so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(cw->dialog), "GncCustomerDialog");
+
     g_object_set_data (G_OBJECT (cw->dialog), "dialog_info", cw);
 
     /* Get entry points */
diff --git a/src/business/business-gnome/dialog-date-close.c b/src/business/business-gnome/dialog-date-close.c
index 2576588787..64aa22fd27 100644
--- a/src/business/business-gnome/dialog-date-close.c
+++ b/src/business/business-gnome/dialog-date-close.c
@@ -140,6 +140,9 @@ gnc_dialog_date_close_parented (GtkWidget *parent, const char *message,
     gnc_builder_add_from_file (builder, "dialog-date-close.glade", "date_close_dialog");
     ddc->dialog = GTK_WIDGET(gtk_builder_get_object (builder, "date_close_dialog"));
 
+    // Set the style context for this dialog so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(ddc->dialog), "GncDateCloseDialog");
+
     date_box = GTK_WIDGET(gtk_builder_get_object (builder, "date_box"));
     ddc->date = gnc_date_edit_new (time(NULL), FALSE, FALSE);
     gtk_box_pack_start (GTK_BOX(date_box), ddc->date, TRUE, TRUE, 0);
@@ -231,6 +234,9 @@ gnc_dialog_dates_acct_question_parented (GtkWidget *parent, const char *message,
     ddc->dialog = GTK_WIDGET(gtk_builder_get_object (builder, "date_account_dialog"));
     ddc->memo_entry = GTK_WIDGET(gtk_builder_get_object (builder, "memo_entry"));
 
+    // Set the style context for this dialog so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(ddc->dialog), "GncDateCloseDialog");
+
     acct_box = GTK_WIDGET(gtk_builder_get_object (builder, "acct_hbox"));
     ddc->acct_combo = gnc_account_sel_new();
     gtk_box_pack_start (GTK_BOX(acct_box), ddc->acct_combo, TRUE, TRUE, 0);
@@ -346,6 +352,9 @@ gnc_dialog_date_acct_parented (GtkWidget *parent, const char *message,
     gnc_builder_add_from_file (builder, "dialog-date-close.glade", "date_account_dialog");
     ddc->dialog = GTK_WIDGET(gtk_builder_get_object (builder, "date_account_dialog"));
 
+    // Set the style context for this dialog so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(ddc->dialog), "GncDateCloseDialog");
+
     acct_box = GTK_WIDGET(gtk_builder_get_object (builder, "acct_hbox"));
     ddc->acct_combo = gnc_account_sel_new();
     if (*acct)
diff --git a/src/business/business-gnome/dialog-employee.c b/src/business/business-gnome/dialog-employee.c
index eb9b02868c..b0a66a3b54 100644
--- a/src/business/business-gnome/dialog-employee.c
+++ b/src/business/business-gnome/dialog-employee.c
@@ -438,6 +438,9 @@ gnc_employee_new_window (QofBook *bookp,
     gnc_builder_add_from_file (builder, "dialog-employee.glade", "employee_dialog");
     ew->dialog = GTK_WIDGET(gtk_builder_get_object (builder, "employee_dialog"));
 
+    // Set the style context for this dialog so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(ew->dialog), "GncEmployeeDialog");
+
     g_object_set_data (G_OBJECT (ew->dialog), "dialog_info", ew);
 
     /* Get entry points */
diff --git a/src/business/business-gnome/dialog-invoice.c b/src/business/business-gnome/dialog-invoice.c
index e292430f01..c39cc65d35 100644
--- a/src/business/business-gnome/dialog-invoice.c
+++ b/src/business/business-gnome/dialog-invoice.c
@@ -252,6 +252,9 @@ iw_ask_unpost (InvoiceWindow *iw)
     dialog = GTK_WIDGET (gtk_builder_get_object (builder, "unpost_message_dialog"));
     toggle = GTK_TOGGLE_BUTTON(gtk_builder_get_object (builder, "yes_tt_reset"));
 
+    // Set the style context for this dialog so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(dialog), "GncInvoiceDialog");
+
     gtk_window_set_transient_for (GTK_WINDOW(dialog),
                                   GTK_WINDOW(iw_get_window(iw)));
 
@@ -2262,6 +2265,9 @@ gnc_invoice_create_page (InvoiceWindow *iw, gpointer page)
     gnc_builder_add_from_file (builder, "dialog-invoice.glade", "invoice_entry_vbox");
     dialog = GTK_WIDGET (gtk_builder_get_object (builder, "invoice_entry_vbox"));
 
+    // Set the style context for this dialog so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(dialog), "GncInvoiceDialog");
+
     /* Autoconnect all the signals */
     gtk_builder_connect_signals_full (builder, gnc_builder_connect_full_func, iw);
 
@@ -2537,6 +2543,9 @@ gnc_invoice_window_new_invoice (InvoiceDialogType dialog_type, QofBook *bookp,
     gnc_builder_add_from_file (builder, "dialog-invoice.glade", "new_invoice_dialog");
     iw->dialog = GTK_WIDGET (gtk_builder_get_object (builder, "new_invoice_dialog"));
 
+    // Set the style context for this dialog so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(iw->dialog), "GncInvoiceDialog");
+
     g_object_set_data (G_OBJECT (iw->dialog), "dialog_info", iw);
 
     /* Grab the widgets */
diff --git a/src/business/business-gnome/dialog-job.c b/src/business/business-gnome/dialog-job.c
index fcef398ffb..e58aca8e96 100644
--- a/src/business/business-gnome/dialog-job.c
+++ b/src/business/business-gnome/dialog-job.c
@@ -340,6 +340,9 @@ gnc_job_new_window (QofBook *bookp, GncOwner *owner, GncJob *job)
     /* Find the dialog */
     jw->dialog = GTK_WIDGET(gtk_builder_get_object (builder, "job_dialog"));
 
+    // Set the style context for this dialog so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(jw->dialog), "GncJobDialog");
+
     /* Get entry points */
     jw->id_entry  = GTK_WIDGET(gtk_builder_get_object (builder, "id_entry"));
     jw->name_entry = GTK_WIDGET(gtk_builder_get_object (builder, "name_entry"));
diff --git a/src/business/business-gnome/dialog-order.c b/src/business/business-gnome/dialog-order.c
index 6e48712ba5..4157b5e7e9 100644
--- a/src/business/business-gnome/dialog-order.c
+++ b/src/business/business-gnome/dialog-order.c
@@ -592,6 +592,9 @@ gnc_order_new_window (QofBook *bookp, OrderDialogType type,
     gnc_builder_add_from_file (builder, "dialog-order.glade", "order_entry_dialog");
     ow->dialog = GTK_WIDGET(gtk_builder_get_object (builder, "order_entry_dialog"));
 
+    // Set the style context for this dialog so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(ow->dialog), "GncOrderDialog");
+
     /* Grab the widgets */
     ow->id_entry = GTK_WIDGET(gtk_builder_get_object (builder, "id_entry"));
     ow->ref_entry = GTK_WIDGET(gtk_builder_get_object (builder, "ref_entry"));
@@ -704,6 +707,9 @@ gnc_order_window_new_order (QofBook *bookp, GncOwner *owner)
 
     ow->dialog = GTK_WIDGET(gtk_builder_get_object (builder, "new_order_dialog"));
 
+    // Set the style context for this dialog so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(ow->dialog), "GncOrderDialog");
+
     g_object_set_data (G_OBJECT (ow->dialog), "dialog_info", ow);
 
     /* Grab the widgets */
diff --git a/src/business/business-gnome/dialog-payment.c b/src/business/business-gnome/dialog-payment.c
index b535ffc74e..ca8bd7e193 100644
--- a/src/business/business-gnome/dialog-payment.c
+++ b/src/business/business-gnome/dialog-payment.c
@@ -930,6 +930,9 @@ new_payment_window (GncOwner *owner, QofBook *book, GncInvoice *invoice)
     gnc_builder_add_from_file (builder, "dialog-payment.glade", "payment_dialog");
     pw->dialog = GTK_WIDGET (gtk_builder_get_object (builder, "payment_dialog"));
 
+    // Set the style context for this dialog so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(pw->dialog), "GncPaymentDialog");
+
     /* Grab the widgets and build the dialog */
     pw->payment_warning = GTK_WIDGET (gtk_builder_get_object (builder, "payment_warning"));
     pw->ok_button = GTK_WIDGET (gtk_builder_get_object (builder, "okbutton"));
diff --git a/src/business/business-gnome/dialog-vendor.c b/src/business/business-gnome/dialog-vendor.c
index 66ec7d6744..e95f480508 100644
--- a/src/business/business-gnome/dialog-vendor.c
+++ b/src/business/business-gnome/dialog-vendor.c
@@ -441,6 +441,9 @@ gnc_vendor_new_window (QofBook *bookp, GncVendor *vendor)
     gnc_builder_add_from_file (builder, "dialog-vendor.glade", "vendor_dialog");
     vw->dialog = GTK_WIDGET (gtk_builder_get_object (builder, "vendor_dialog"));
 
+    // Set the style context for this dialog so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(vw->dialog), "GncVendorDialog");
+
     /* Get entry points */
     vw->id_entry = GTK_WIDGET (gtk_builder_get_object (builder, "id_entry"));
     vw->company_entry = GTK_WIDGET (gtk_builder_get_object (builder, "company_entry"));
diff --git a/src/business/business-gnome/gnc-plugin-page-invoice.c b/src/business/business-gnome/gnc-plugin-page-invoice.c
index e71cd9e5ed..11aae9e4ea 100644
--- a/src/business/business-gnome/gnc-plugin-page-invoice.c
+++ b/src/business/business-gnome/gnc-plugin-page-invoice.c
@@ -41,6 +41,7 @@
 #include "gnc-prefs.h"
 #include "gnc-ui-util.h"
 #include "gnc-window.h"
+#include "dialog-utils.h"
 
 /* This static indicates the debugging module that this .o belongs to.  */
 static QofLogModule log_module = GNC_MOD_GUI;
@@ -463,6 +464,9 @@ gnc_plugin_page_invoice_create_widget (GncPluginPage *plugin_page)
     priv->widget = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
     gtk_box_set_homogeneous (GTK_BOX (priv->widget), FALSE);
 
+    // Set the style context for this page so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(priv->widget), "GncInvoicePage");
+
     gtk_widget_show (priv->widget);
 
     widget = gnc_invoice_create_page(priv->iw, page);
diff --git a/src/business/business-gnome/gnc-plugin-page-owner-tree.c b/src/business/business-gnome/gnc-plugin-page-owner-tree.c
index 1af81fd684..ce3b462e47 100644
--- a/src/business/business-gnome/gnc-plugin-page-owner-tree.c
+++ b/src/business/business-gnome/gnc-plugin-page-owner-tree.c
@@ -560,6 +560,7 @@ gnc_plugin_page_owner_tree_create_widget (GncPluginPage *plugin_page)
     GtkTreeViewColumn *col;
     const gchar *state_section = NULL;
     gchar* label = "";
+    const gchar *style_label = NULL;
 
     ENTER("page %p", plugin_page);
     page = GNC_PLUGIN_PAGE_OWNER_TREE (plugin_page);
@@ -574,6 +575,9 @@ gnc_plugin_page_owner_tree_create_widget (GncPluginPage *plugin_page)
     gtk_box_set_homogeneous (GTK_BOX (priv->widget), FALSE);
     gtk_widget_show (priv->widget);
 
+    // Set the style context for this page so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(priv->widget), "GncBusinessPage");
+
     scrolled_window = gtk_scrolled_window_new (NULL, NULL);
     gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
                                     GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
@@ -598,33 +602,39 @@ gnc_plugin_page_owner_tree_create_widget (GncPluginPage *plugin_page)
     g_object_set_data(G_OBJECT(col), DEFAULT_VISIBLE, GINT_TO_POINTER(1));
     gnc_tree_view_configure_columns(GNC_TREE_VIEW(tree_view));
 
-
-
     switch (priv->owner_type)
     {
     case GNC_OWNER_NONE :
     case GNC_OWNER_UNDEFINED :
         PWARN("missing owner_type");
         label = _("Unknown");
+        style_label = "GncUnknown";
         break;
     case GNC_OWNER_CUSTOMER :
         label = _("Customers");
         state_section = "Customers Overview";
+        style_label = "GncCustomers";
         break;
     case GNC_OWNER_JOB :
         label = _("Jobs");
         state_section = "Jobs Overview";
+        style_label = "GncJobs";
         break;
     case GNC_OWNER_VENDOR :
         label = _("Vendors");
         state_section = "Vendors Overview";
+        style_label = "GncVendors";
         break;
     case GNC_OWNER_EMPLOYEE :
         label = _("Employees");
         state_section = "Employees Overview";
+        style_label = "GncEmployees";
         break;
     }
 
+    // Set a secondary style context for this page so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(priv->widget), style_label);
+
     g_object_set(G_OBJECT(tree_view), "state-section", state_section,
                                       "show-column-menu", TRUE,
                                       NULL);
diff --git a/src/import-export/csv-exp/assistant-csv-export.c b/src/import-export/csv-exp/assistant-csv-export.c
index fc0476e17f..ba645adb93 100644
--- a/src/import-export/csv-exp/assistant-csv-export.c
+++ b/src/import-export/csv-exp/assistant-csv-export.c
@@ -818,6 +818,9 @@ csv_export_assistant_create (CsvExportInfo *info)
     window = GTK_WIDGET(gtk_builder_get_object (builder, "csv_export_assistant"));
     info->window = window;
 
+    // Set the style context for this assistant so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(window), "GncAssistExport");
+
     /* Load default settings */
     load_settings (info);
 
diff --git a/src/import-export/csv-imp/assistant-csv-account-import.c b/src/import-export/csv-imp/assistant-csv-account-import.c
index e61e209243..3e335ca3f9 100644
--- a/src/import-export/csv-imp/assistant-csv-account-import.c
+++ b/src/import-export/csv-imp/assistant-csv-account-import.c
@@ -581,6 +581,9 @@ csv_import_assistant_create (CsvImportInfo *info)
     window = GTK_WIDGET(gtk_builder_get_object (builder, "csv_account_import_assistant"));
     info->window = window;
 
+    // Set the style context for this dialog so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(window), "GncAssistAccountImport");
+
     /* Load default settings */
     load_settings (info);
 
diff --git a/src/import-export/csv-imp/assistant-csv-trans-import.cpp b/src/import-export/csv-imp/assistant-csv-trans-import.cpp
index fa461ba98d..d619e9e1f2 100644
--- a/src/import-export/csv-imp/assistant-csv-trans-import.cpp
+++ b/src/import-export/csv-imp/assistant-csv-trans-import.cpp
@@ -392,6 +392,9 @@ CsvImpTransAssist::CsvImpTransAssist ()
     gnc_builder_add_from_file  (builder , "assistant-csv-trans-import.glade", "csv_transaction_assistant");
     csv_imp_asst = GTK_ASSISTANT(gtk_builder_get_object (builder, "csv_transaction_assistant"));
 
+    // Set the style context for this assistant so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(csv_imp_asst), "GncAssistTransImport");
+
     /* Enable buttons on all page. */
     gtk_assistant_set_page_complete (csv_imp_asst,
                                      GTK_WIDGET(gtk_builder_get_object (builder, "start_page")),
diff --git a/src/import-export/qif-imp/assistant-qif-import.c b/src/import-export/qif-imp/assistant-qif-import.c
index d59df8a9e1..918595730d 100644
--- a/src/import-export/qif-imp/assistant-qif-import.c
+++ b/src/import-export/qif-imp/assistant-qif-import.c
@@ -3434,6 +3434,9 @@ get_assistant_widgets(QIFImportWindow *wind, GtkBuilder *builder)
                                    GTK_TEXT_VIEW(wind->convert_log));
     wind->summary_text       = GTK_WIDGET(gtk_builder_get_object (builder, "summary_page"));
 
+    // Set the style context for this assistant so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(wind->window), "GncAssistQifImport");
+
     wind->new_transaction_view =
         GTK_WIDGET(gtk_builder_get_object (builder, "new_transaction_view"));
     wind->old_transaction_view =
diff --git a/src/plugins/bi_import/dialog-bi-import-gui.c b/src/plugins/bi_import/dialog-bi-import-gui.c
index 5ff690138f..9ecaac4473 100644
--- a/src/plugins/bi_import/dialog-bi-import-gui.c
+++ b/src/plugins/bi_import/dialog-bi-import-gui.c
@@ -108,6 +108,9 @@ gnc_plugin_bi_import_showGUI(void)
     gui->tree_view = GTK_WIDGET(gtk_builder_get_object (builder, "treeview1"));
     gui->entryFilename = GTK_WIDGET(gtk_builder_get_object (builder, "entryFilename"));
 
+    // Set the style context for this dialog so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(gui->dialog), "GncBillImportDialog");
+
     gui->book = gnc_get_current_book();
 
     gui->regexp = g_string_new ( "^(?<id>[^;]*);(?<date_opened>[^;]*);(?<owner_id>[^;]*);(?<billing_id>[^;]*);?(?<notes>[^;]*);?(?<date>[^;]*);?(?<desc>[^;]*);?(?<action>[^;]*);?(?<account>[^;]*);?(?<quantity>[^;]*);?(?<price>[^;]*);?(?<disc_type>[^;]*);?(?<disc_how>[^;]*);?(?<discount>[^;]*);?(?<taxable>[^;]*);?(?<taxincluded>[^;]*);?(?<tax_table>[^;]*);(?<date_posted>[^;]*);(?<due_date>[^;]*);(?<account_posted>[^;]*);(?<memo_posted>[^;]*);(?<accu_splits>[^;]*)$");
diff --git a/src/plugins/customer_import/dialog-customer-import-gui.c b/src/plugins/customer_import/dialog-customer-import-gui.c
index 1114412701..b0542cad1c 100644
--- a/src/plugins/customer_import/dialog-customer-import-gui.c
+++ b/src/plugins/customer_import/dialog-customer-import-gui.c
@@ -104,6 +104,9 @@ gnc_plugin_customer_import_showGUI(void)
     gui->entryFilename = GTK_WIDGET(gtk_builder_get_object (builder, "entryFilename"));
     gui->type = "CUSTOMER"; // Set a default type to import
 
+    // Set the style context for this dialog so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(gui->dialog), "GncCustomerImportDialog");
+
     gui->regexp = g_string_new ( "^(?<id>[^;]+);(?<company>[^;]*);(?<name>[^;]+);(?<addr1>[^;]+);?(?<addr2>[^;]*);?(?<addr3>[^;]*);?(?<addr4>[^;]*);?(?<phone>[^;]*);?(?<fax>[^;]*);?(?<email>[^;]*);?(?<shipname>[^;]*);?(?<shipaddr1>[^;]*);?(?<shipaddr2>[^;]*);?(?<shipaddr3>[^;]*);?(?<shipaddr4>[^;]*);?(?<shipphone>[^;]*);?(?<shipfax>[^;]*);?(?<shipemail>[^;]*)");
     gui->book = gnc_get_current_book();
 
diff --git a/src/report/report-gnome/dialog-custom-report.c b/src/report/report-gnome/dialog-custom-report.c
index 50bd6f77fa..3db3d9aa4a 100644
--- a/src/report/report-gnome/dialog-custom-report.c
+++ b/src/report/report-gnome/dialog-custom-report.c
@@ -505,6 +505,9 @@ static CustomReportDialog *gnc_ui_custom_report_internal(GncMainWindow * window)
     set_reports_view_and_model(crd);
     crd->window = window;
 
+    // Set the style context for this dialog so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(crd->dialog), "GncCustomReportDialog");
+
     gnc_restore_window_size (GNC_PREFS_GROUP_REPORT_SAVED_CONFIGS, GTK_WINDOW(crd->dialog));
 
     /* connect the signals */
diff --git a/src/report/report-gnome/dialog-report-style-sheet.c b/src/report/report-gnome/dialog-report-style-sheet.c
index 85b657820d..69911750e8 100644
--- a/src/report/report-gnome/dialog-report-style-sheet.c
+++ b/src/report/report-gnome/dialog-report-style-sheet.c
@@ -197,6 +197,9 @@ gnc_style_sheet_new (StyleSheetDialog * ssd)
     template_combo = GTK_WIDGET(gtk_builder_get_object (builder, "template_combobox"));
     name_entry     = GTK_WIDGET(gtk_builder_get_object (builder, "name_entry"));
 
+    // Set the style context for this dialog so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(dlg), "GncStyleSheetDialog");
+
     g_assert(ssd);
 
     /* Erase the initial dummy entry. */
@@ -410,6 +413,9 @@ gnc_style_sheet_select_dialog_create(void)
 
     ss->toplevel   = GTK_WIDGET(gtk_builder_get_object (builder, "select_style_sheet_dialog"));
 
+    // Set the style context for this dialog so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(ss->toplevel), "GncStyleSheetDialog");
+
     ss->list_view  = GTK_TREE_VIEW(gtk_builder_get_object (builder, "style_sheet_list_view"));
     ss->list_store = gtk_list_store_new (N_COLUMNS, G_TYPE_STRING, G_TYPE_POINTER, G_TYPE_POINTER);
     gtk_tree_view_set_model(ss->list_view, GTK_TREE_MODEL(ss->list_store));
diff --git a/src/report/report-gnome/gnc-plugin-page-report.c b/src/report/report-gnome/gnc-plugin-page-report.c
index 75c53ece9b..8f86c5ee94 100644
--- a/src/report/report-gnome/gnc-plugin-page-report.c
+++ b/src/report/report-gnome/gnc-plugin-page-report.c
@@ -49,6 +49,7 @@
 #include <gnc-glib-utils.h>
 #include "gfec.h"
 #include "dialog-custom-report.h"
+#include "dialog-utils.h"
 #include "gnc-component-manager.h"
 #include "gnc-engine.h"
 #include "gnc-gnome-utils.h"
@@ -424,6 +425,9 @@ gnc_plugin_page_report_create_widget( GncPluginPage *page )
     priv->container = GTK_CONTAINER(gtk_frame_new(NULL));
     gtk_frame_set_shadow_type(GTK_FRAME(priv->container), GTK_SHADOW_NONE);
 
+    // Set the style context for this page so it can be easily manipulated with css
+    gnc_widget_set_style_context (GTK_WIDGET(priv->container), "GncReportPage");
+
     gtk_container_add(GTK_CONTAINER(priv->container),
                       gnc_html_get_widget(priv->html));