diff --git a/_web_server/server/index.html b/_web_server/server/index.html
index bfda875..b908d68 100644
--- a/_web_server/server/index.html
+++ b/_web_server/server/index.html
@@ -11,6 +11,7 @@
           box-sizing: border-box;
           margin: 0;
           padding: 0;
+          font-variant-ligatures: none;
       }
 
       body {