Add border to images in index cards

website/themes/ots/static/css/child-style.css

@@ -24,6 +24,12 @@
     border-width: 1px;
 }
 
+.headerimage-card img {
+    border-style: solid;
+    border-width: 1px;
+}
+
+
 /* Make header title not all uppercase. */
 .site-title {
   text-transform: unset;