diff --git a/src/site.css b/src/site.css
index 7144924f..26493063 100644
--- a/src/site.css
+++ b/src/site.css
@@ -155,16 +155,26 @@ body {
   white-space: nowrap;
   display: flex;
   align-items: center;
+  border-right: 1px solid #eee;
+}
+
+.gridCell:last-child {
+  border-right: none;
 }
 
 .gridHeader {
   font-weight: 600;
   color: #333;
-  background: #f9f9f9;
+  background: #f5f6f8;
   border-bottom: 2px solid #ddd;
+  border-right: 1px solid #ddd;
   position: relative;
 }
 
+.gridHeader:last-child {
+  border-right: none;
+}
+
 .gridBody {
   border-bottom: 1px solid #eee;
   color: #333;