diff --git a/index.html b/index.html
index 1591fc2..9a75f02 100644
--- a/index.html
+++ b/index.html
@@ -36,6 +36,12 @@
         font-size: 22px;
         font-weight: 400;
       }
+      .main h2:before {
+        content: "∧";
+        margin-right: 0.5em;
+        font-size: 1.5rem;
+        color: lightgrey;
+      }
       .main a {
         color: #000;
         text-decoration: none;