diff --git a/invenio_theme_tugraz/assets/semantic-ui/less/invenio_theme_tugraz/header.less b/invenio_theme_tugraz/assets/semantic-ui/less/invenio_theme_tugraz/header.less
index 8a7f522..75583ca 100644
--- a/invenio_theme_tugraz/assets/semantic-ui/less/invenio_theme_tugraz/header.less
+++ b/invenio_theme_tugraz/assets/semantic-ui/less/invenio_theme_tugraz/header.less
@@ -187,13 +187,17 @@ svg:not(:root) {
 
 /***********MAIN menu*************/
 
-.main-menu-entry a {
-  padding: 5px 8px;
+.main-menu-entry {
+  text-align: center !important;
+  & a {
+    font-size: 1.2rem;
+    padding: 5px 8px;
+  }
 }
 
 .main-menu-entry a:hover {
-  background-color: #000000;
-  color: #ffffff;
+  background-color: #000;
+  color: #fff;
   text-decoration: none;
 }