PL: session attendance recorded interstitial page

apps/style/code-studio/pd.scss

@@ -147,3 +147,34 @@ form .form-required-field {
     cursor: pointer;
   }
 }
+
+.workshop-attendance-recorded {
+  font-size: 14px;
+  width: 70%;
+  line-height: 1.5;
+
+  .left {
+    float: left;
+    width: 28%;
+  }
+
+  .right {
+    float: left;
+    width: 72%;
+    padding-top: 20px;
+  }
+
+  .checkmark {
+    font-size: 160px;
+    color: $charcoal;
+  }
+
+  .paragraph {
+    margin-bottom: 15px;
+  }
+
+  button {
+    margin-left: 0px;
+    padding: 10px 20px 10px 20px;
+  }
+}

dashboard/app/controllers/pd/session_attendance_controller.rb

@@ -28,7 +28,7 @@ def attend
 
     attendance = Pd::Attendance.find_restore_or_create_by! session: @session, teacher: current_user
     attendance.update! marked_by_user: nil, enrollment: enrollment
-    render_confirmation
+    render :attendance_recorded
   end
 
   # POST pd/attend/:session_code
@@ -89,12 +89,4 @@ def render_own_workshop
 
     redirect_to CDO.studio_url('/', CDO.default_scheme)
   end
-
-  def render_confirmation
-    flash[:notice] = 'Thank you for attending Code.org professional development. '\
-      "We’ve recorded that you were here on #{@session.formatted_date}. "\
-      'If your workshop is multiple days, you will mark yourself as attended each day of the workshop'
-
-    redirect_to CDO.studio_url('/', CDO.default_scheme)
-  end
 end

dashboard/app/views/pd/session_attendance/attendance_recorded.html.haml

@@ -0,0 +1,23 @@
+- content_for(:head) do
+  = stylesheet_link_tag 'css/pd', media: 'all'
+
+%h1 Attendance recorded
+
+.workshop-attendance-recorded
+  .left
+    .fa.fa-check-square-o.checkmark
+
+  .right
+    .paragraph
+      We’ve recorded that you were here on #{@session.formatted_date}.
+
+    .paragraph
+      Thank you for attending Code.org professional development.
+
+    .paragraph
+      If your workshop is multiple days, you must record attendance each day.
+
+    .paragraph
+      %a{href: '/home'}
+        %button
+          Continue