Karuna: Centers the Infinite Scroll spinner on Product Archive pages

karuna/woocommerce.css

@@ -678,6 +678,10 @@ ul#shipping_method {
 .infinite-scroll .woocommerce-pagination {
   display: none; }
 
+.infinite-scroll.woocommerce-page .infinite-loader {
+  margin: 1em auto;
+  width: 2.1em; }
+
 /**
  * Onsale
  */