diff --git a/src/frontend.template.php b/src/frontend.template.php
index 855b9c6..f8d5711 100644
--- a/src/frontend.template.php
+++ b/src/frontend.template.php
@@ -180,8 +180,9 @@ $mailIdsJoinedString = filter_var(join('|', $mailIds), FILTER_SANITIZE_SPECIAL_C
                 <div class="email-table">
 
                     <div class="card email">
+
                         <!-- preview header -->
-                        <div class="card-block header-shadow"
+                        <div class="card-block header-shadow email-preview-header"
                              id="email-preview-header-<?php echo filter_var($email->id, FILTER_SANITIZE_SPECIAL_CHARS); ?>"
                              onclick="toggle_email_visibility('<?php echo filter_var($email->id, FILTER_SANITIZE_SPECIAL_CHARS); ?>')">
                             <div class="row">
diff --git a/src/style.css b/src/style.css
index 6ae1346..9a4ec68 100644
--- a/src/style.css
+++ b/src/style.css
@@ -44,6 +44,10 @@ div.min-height {
     display: none;
 }
 
+.email-preview-header {
+    cursor: pointer;
+}
+
 .email-content {
     display: none;
 }