flash screen red when user enters a word not in wordlist or not enough letters

game.js

@@ -32,7 +32,11 @@ function checkGridRow() {
     getGridRow(row).items.forEach(item => rowWord += item.letter)
     
     console.log(rowWord)
-    if (!wordlist.includes(rowWord)) return
+    if (!wordlist.includes(rowWord)) {
+        body.classList.add("incorrect")
+        setTimeout( () => body.classList.remove("incorrect"), 500)
+        return
+    }
     
     var correct_letters = 0
     var dedupword = word