diff --git a/src/app/index.css b/src/app/index.css
index 6119ad9..09183b8 100644
--- a/src/app/index.css
+++ b/src/app/index.css
@@ -10,7 +10,8 @@
   font-synthesis: none;
   text-rendering: optimizeLegibility;
   -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
+  /* Give declaration dropped warning */
+  /* -moz-osx-font-smoothing: grayscale; */
 }
 
 a {
@@ -51,7 +52,8 @@ button:hover {
 }
 button:focus,
 button:focus-visible {
-  outline: 4px auto -webkit-focus-ring-color;
+  /* Gives a warning: declaration dropped */
+  /* outline: 4px auto -webkit-focus-ring-color; */
 }
 
 @media (prefers-color-scheme: light) {