diff --git a/src/runboat/webui/builds.html b/src/runboat/webui/builds.html
index 3ddf23a..edabc9c 100644
--- a/src/runboat/webui/builds.html
+++ b/src/runboat/webui/builds.html
@@ -8,6 +8,9 @@
             .row {
                 display: flex;
                 flex-direction: row;
+                border-style: none none solid none;
+                border-width: thin;
+                border-color: lightgray;
             }
             runboat-build {
                 margin: 0.25em;