added ability to void invoices.

resources/public/index.html

@@ -53,6 +53,16 @@
     translateY(-100%); }
     }
 
+    @keyframes flashWarning {
+    from { 
+    
+    }
+    to {
+
+        background-color: #00d1b2;
+    }
+    }
+
     @keyframes flashPrimary {
     from { 
         transform: translateY(100%);
@@ -65,6 +75,9 @@
     }
     }
     
+    tbody tr.live-removed {
+        animation: flashWarning 1.0s ease both;
+    }
     tbody tr.live-added {
         animation: flashPrimary 1.0s ease both;
     }