diff --git a/invenio_theme/assets/semantic-ui/less/invenio_theme/theme/globals/site.overrides b/invenio_theme/assets/semantic-ui/less/invenio_theme/theme/globals/site.overrides
index 04da86a6..6c438ac9 100644
--- a/invenio_theme/assets/semantic-ui/less/invenio_theme/theme/globals/site.overrides
+++ b/invenio_theme/assets/semantic-ui/less/invenio_theme/theme/globals/site.overrides
@@ -636,3 +636,17 @@ code {
     list-style-type: none !important;
   }
 }
+
+/* TinyMCE Editor Output */
+.mce-content {
+  table, td, th {
+      border: 1px dashed #bbb;
+      border-collapse: collapse;
+      padding: 1rem;
+  }
+  blockquote{
+      border-left: 4px solid #ccc;
+      margin-left: 1.5rem;
+      padding-left: 1rem;
+  }
+}
\ No newline at end of file