1 files changed, 23 insertions, 0 deletions

diff --git a/content/assets/main.js b/content/assets/main.js
new file mode 100644
index 0000000..7189312
--- /dev/null
+++ b/content/assets/main.js
@@ -0,0 +1,23 @@
+(() => {
+    document.body.classList.remove('t-no-js');
+    document.body.classList.add('t-js');
+
+    const enableFocusIndicator = e => {
+        if (e.key !== 'Tab') {
+            return;
+        }
+
+        document.body.classList.add('t-keyboard');
+        document.removeEventListener('keydown', enableFocusIndicator);
+        document.addEventListener('mousedown', disableFocusIndicator);
+    }
+
+    const disableFocusIndicator = () => {
+        document.body.classList.remove('t-keyboard');
+
+        document.removeEventListener('mousedown', disableFocusIndicator);
+        document.addEventListener('keydown', enableFocusIndicator);
+    }
+
+    document.addEventListener('keydown', enableFocusIndicator);
+})();