diff --git a/packages/core/src/style.css b/packages/core/src/style.css
index 28b070a4..714c9258 100644
--- a/packages/core/src/style.css
+++ b/packages/core/src/style.css
@@ -49,6 +49,7 @@
   width: 100%;
   height: 100%;
   pointer-events: none;
+  user-select: none;
 }
 
 .vue-flow__nodesselection-rect:focus,