fix

Author: zJiaJun

starter/07-Omnifood-Desktop/css/style.css

@@ -394,7 +394,7 @@
   font-weight: 600;
   font-size: 2rem;
   text-transform: uppercase;
-  letter-spacing: 0.75;
+  letter-spacing: 0.75px;
   margin-bottom: 3.2rem;
 }