diff --git a/index_beta.php b/index_beta.php
index a5aa474..43a4e14 100644
--- a/index_beta.php
+++ b/index_beta.php
@@ -152,7 +152,7 @@
         overflow-y: scroll;
         overflow-x: hidden;
         flex-grow: 1;
-        height: 50vh; /* XXX */
+        max-height: 50vh; /* XXX */
       }
       .comment {
         font-size: 10px;