diff --git a/wasm/app/style.css b/wasm/app/style.css
index bd3af40..94e03a9 100644
--- a/wasm/app/style.css
+++ b/wasm/app/style.css
@@ -81,6 +81,9 @@ header {
   width: 3.2rem;
   height: auto;
   display: block;
+  /* Flip vertically + horizontally (= 180°) to match the inverted-λ
+   * convention from the homepage's hand-drawn artwork. */
+  transform: scale(-1, -1);
 }
 
 header h1 {
diff --git a/www/playground/style.css b/www/playground/style.css
index bd3af40..94e03a9 100644
--- a/www/playground/style.css
+++ b/www/playground/style.css
@@ -81,6 +81,9 @@ header {
   width: 3.2rem;
   height: auto;
   display: block;
+  /* Flip vertically + horizontally (= 180°) to match the inverted-λ
+   * convention from the homepage's hand-drawn artwork. */
+  transform: scale(-1, -1);
 }
 
 header h1 {
diff --git a/www/repl/style.css b/www/repl/style.css
index bd3af40..94e03a9 100644
--- a/www/repl/style.css
+++ b/www/repl/style.css
@@ -81,6 +81,9 @@ header {
   width: 3.2rem;
   height: auto;
   display: block;
+  /* Flip vertically + horizontally (= 180°) to match the inverted-λ
+   * convention from the homepage's hand-drawn artwork. */
+  transform: scale(-1, -1);
 }
 
 header h1 {