diff --git a/assets/style.scss b/assets/style.scss
index 67a3288..cbfc88b 100644
--- a/assets/style.scss
+++ b/assets/style.scss
@@ -77,6 +77,63 @@ code:not([class]) {
   color: $green;
 }
 
+// Soulignement des titres
+h1 {
+  font-size: 1em;
+  color: $fg0;
+  text-transform: uppercase;
+  margin: 0;
+  padding-bottom: 1em;
+  position: relative;
+  display: inline-block;
+}
+
+h1::after {
+  content: "";
+  position: absolute;
+
+  left: 0;
+  bottom: 0;
+  width: 100%;
+  height: 1em; /* ≈ hauteur d’un caractère */
+
+  background-image: linear-gradient(
+    to bottom,
+    transparent 35.71%,
+    $fg0 35.71% 42.85%,
+    transparent 42.85% 49.99%,
+    $fg0 49.99% 57.13%,
+    transparent 57.13%
+  );
+}
+
+h2 {
+  font-size: 1em;
+  text-transform: uppercase;
+  color: $fg0;
+  margin: 0;
+  padding-bottom: 1em;
+  position: relative;
+  display: inline-block;
+}
+
+h2::after {
+  content: "";
+  position: absolute;
+
+  left: 0;
+  bottom: 0;
+  width: 100%;
+  height: 1em; /* ≈ hauteur d’un caractère */
+
+  background-image: linear-gradient(
+    to bottom,
+    transparent 49.99%,
+    $fg0 49.99% 57.13%,
+    transparent 57.13%
+  );
+}
+
 // Prompt and command line.
 // ========================
 .cmdblock {