assets/stylesheets/bootstrap/mixins/_screen-reader.scss in bootstrap-4.0.0.beta2.1 vs assets/stylesheets/bootstrap/mixins/_screen-reader.scss in bootstrap-4.0.0.beta3

@@ -7,10 +7,10 @@
   position: absolute;
   width: 1px;
   height: 1px;
   padding: 0;
   overflow: hidden;
-  clip: rect(0,0,0,0);
+  clip: rect(0, 0, 0, 0);
   white-space: nowrap;
   clip-path: inset(50%);
   border: 0;
 }