Define a custom layout for submission thank you page

app/controllers/forms_controller.rb

@@ -2,6 +2,7 @@ require 'google/apis/sheets_v4'
 require 'google/api_client/client_secrets'
 class FormsController < ApplicationController
   before_action :require_login, except: [:form]
+  layout 'submission', only: [:form]
 
   def new
     @form = current_user.forms.build
@@ -39,7 +40,9 @@ class FormsController < ApplicationController
   end
 
   def form
+    
     @form = Form.find_by!(token: params[:id])
+    render 'submissions/create'
   end
 
   private

app/controllers/submissions_controller.rb

@@ -2,6 +2,7 @@ require 'google/apis/sheets_v4'
 class SubmissionsController < ApplicationController
   skip_before_action :verify_authenticity_token
   wrap_parameters false
+  layout 'submission', only: [:create]
 
   def create
     @form = Form.find_by!(token: params[:form_id])