diff --git a/docs/prune-simulator/index.html b/docs/prune-simulator/index.html
index 5d298ea6..641ef435 100644
--- a/docs/prune-simulator/index.html
+++ b/docs/prune-simulator/index.html
@@ -13,6 +13,7 @@
         .cal-day {
             vertical-align: top;
             width: 150px;
+            height: 75px; /* this is like min-height when used in tables */
             border: #939393 1px solid;
             color: #454545;
         }