diff --git a/assets/u/static/style.css b/assets/u/static/style.css
index 7ff6e0b..459c337 100644
--- a/assets/u/static/style.css
+++ b/assets/u/static/style.css
@@ -25,6 +25,20 @@ header h1 {
     font-size: 42px;
 }
 
+// Sanghee, 2021-09-20
+h2 {
+    font-size: 1.65rem;
+    line-height: 2;
+    font-weight: 700;
+}
+
+// Sanghee, 2021-09-20
+h3 {
+    font-size: 1rem;
+    text-transform: uppercase;
+    font-weight: 700;
+}
+
 header nav ul {
     list-style: none;
     margin: 0;