Update style.css

style.css

@@ -105,9 +105,9 @@ button[type="submit"]:hover {
   background-color: #0056b3;
 }
 
-#result {
+.result-box {
   margin-top: 20px;
-  font-size: 18px;
+  font-size: 16px;
   font-weight: bold;
   color: #333;
   background-color: #f8f8f8;