diff --git a/view/style.css b/view/style.css
index 1015e90..59069c4 100644
--- a/view/style.css
+++ b/view/style.css
@@ -219,6 +219,7 @@ html {
     font-size: 1.4rem;
     background-color: white;
     box-shadow: lightblue 0 0 0.4rem;
+	user-select: none;
 }
 
 .judge > li > span,
@@ -459,4 +460,4 @@ ins.adsbygoogle {
       opacity: 1;
       transform: scale3d(0.5, 0.5, 0.5); }
     50% {
-      opacity: 1; } }
\ No newline at end of file
+      opacity: 1; } }