diff --git a/src/components/Calibration/index.less b/src/components/Calibration/index.less
index 6bb9523..6b8dc61 100644
--- a/src/components/Calibration/index.less
+++ b/src/components/Calibration/index.less
@@ -4,6 +4,7 @@
   position: relative;
   white-space: nowrap;
   pointer-events: none;
+  user-select: none;
   :global(.calibrationNumber) {
     font-size: 12px;
     color: #888;