diff --git a/html/static/styles.css b/html/static/styles.css
index f8c9947..1f4c4b3 100644
--- a/html/static/styles.css
+++ b/html/static/styles.css
@@ -80,7 +80,7 @@ body {
     background-color: black;
 }
 
-.cell.HalfRight {
+.key.HalfRight {
     background-color: #bb0;
     border: none;
 }