diff --git a/src/components/Board.css b/src/components/Board.css
index fbc953f..f96c6f0 100644
--- a/src/components/Board.css
+++ b/src/components/Board.css
@@ -9,6 +9,7 @@
 .tile {
     height: 3em;
     width: 3em;
+    user-select: none;
 }
 
 .revealed {