macros.htm: Colorize table rows alternating

server/templates/macros.htm

@@ -5,6 +5,9 @@
             padding: .2em;
             border: solid black 1px;
         }
+        table tr:nth-child(even) {
+            background-color: #eeeeee;
+        }
         a:link {
             text-decoration: none;
             color: blue;