diff --git a/resources/css/humhub.mail.css b/resources/css/humhub.mail.css
index 25ab8e00..270bb8d0 100644
--- a/resources/css/humhub.mail.css
+++ b/resources/css/humhub.mail.css
@@ -6,18 +6,6 @@
   margin-bottom: 12px;
   font-weight: 600;
 }
-#dropdown-messages .dropdown-footer .btn.btn-default {
-  border: 1px solid var(--default);
-  box-shadow: none;
-}
-#dropdown-messages .dropdown-footer .btn.btn-default:hover {
-  border-color: var(--background3);
-  background: var(--background3);
-}
-#dropdown-messages .dropdown-footer .btn.btn-default:active {
-  border-color: var(--text-color-secondary);
-  background: #FFF;
-}
 #dropdown-messages.dropdown-menu li a {
   font-size: inherit !important;
 }
diff --git a/resources/css/humhub.mail.less b/resources/css/humhub.mail.less
index b6cc312f..bb9c5f59 100644
--- a/resources/css/humhub.mail.less
+++ b/resources/css/humhub.mail.less
@@ -25,24 +25,6 @@
     margin-bottom: 12px;
     .semiBold;
   }
-
-  .dropdown-footer {
-    .btn.btn-default {
-      border: 1px solid var(--default);
-      box-shadow: none;
-
-      &:hover {
-        border-color: var(--background3);
-        background: var(--background3);
-      }
-
-      &:active {
-        border-color: var(--text-color-secondary);
-        background: #FFF;
-      }
-    }
-  }
-
   &.dropdown-menu {
     li {
       a {