Display pitch correctly on congratulations page

[MAILPOET-2142]

assets/css/src/components/_newsletterCongratulate.scss

@@ -36,3 +36,10 @@
     width: 500px;
   }
 }
+
+.mailpoet_congratulate_success.mailpoet_congratulate_mss_pitch {
+  .button,
+  img {
+    display: inline-block;
+  }
+}

assets/js/src/newsletters/send/congratulate/success_pitch_mss.jsx

@@ -7,7 +7,7 @@ import WelcomeWizardPitchMSSStep from '../../../wizard/steps/pitch_mss_step.jsx'
 
 function PitchMss(props) {
   return (
-    <div className="mailpoet_congratulate_success">
+    <div className="mailpoet_congratulate_success mailpoet_congratulate_mss_pitch">
       <h1>{MailPoet.I18n.t('congratulationsMSSPitchHeader')}</h1>
       <WelcomeWizardStepLayoutBody
         illustrationUrl={props.MSSPitchIllustrationUrl}