Extract CSS to a file.

src/closed.scss

@@ -33,7 +33,7 @@ body.closed {
     height: 100%;
     background-size: contain;
     background-repeat: no-repeat;
-    background-image: url(stop.svg);
+    background-image: url(/stop.svg);
     background-position: 50% 50%;
   }
 }

src/open.scss

@@ -1,15 +1,4 @@
 // Styles for the "Open" page
-@keyframes starrotation {
-  0% {
-    transform: rotate(0deg);
-  }
-  25% {
-    transform: rotate(90deg);
-  }
-  100% {
-    transform: rotate(360deg);
-  }
-}
 
 body.open {
   background-color: #a3d165;