diff --git a/src/app/styles.css b/src/app/styles.css
index 0e393c1..70fcc7e 100644
--- a/src/app/styles.css
+++ b/src/app/styles.css
@@ -50,6 +50,7 @@
 
 * {
   box-sizing: border-box;
+  user-select: none;
 }
 body {
   margin: 0;