diff --git a/app/assets/stylesheets/application.css b/app/assets/stylesheets/application.css
index cb36b90..cd7132b 100644
--- a/app/assets/stylesheets/application.css
+++ b/app/assets/stylesheets/application.css
@@ -14,18 +14,26 @@
  *= require_self
  */
 
+* {
+  font-family: system-ui;
+}
+
 .app-menu {
   height: 2.1em;
 }
 .app-menu a {
-  color: black;
+  border: 0.1em solid;
+  border-color: #a0a0a0;
+  border-radius: 0.2em;
+  color: #a0a0a0;
   float: right;
-  font-size: 0.9em;
+  font-size: 0.8em;
+  font-weight: bold;
   padding: 0.6em;
 }
 .app-menu a:hover {
   background-color: #009ade;
-  border-radius: 0.2em;
+  border-color: #009ade;
   color: white;
   cursor: pointer;
   text-decoration: none;