add: gtk_dialog_set_has_separator (GTK_DIALOG (dialog), FALSE); gtk_container_set_border_width (GTK_CONTAINER (dialog), 5);
context: ask_show_visuals (Totem *totem){	GtkWidget *dialog;	int answer;	dialog =		gtk_message_dialog_new (NULL,				GTK_DIALOG_MODAL,				GTK_MESSAGE_ERROR,				GTK_BUTTONS_YES_NO,				_("It seems you are running Totem remotely.\n"				"Are you sure you want to enable the visual "				"effects?"));	gtk_dialog_set_default_response (GTK_DIALOG (dialog),			GTK_RESPONSE_NO);	answer = gtk_dialog_run (GTK_DIALOG (dialog));	gtk_widget_destroy (dialog);	return (answer == GTK_RESPONSE_YES ? TRUE : FALSE);}