diff --git a/web-vue/src/components/logView/view-pre.vue b/web-vue/src/components/logView/view-pre.vue
index 52e3041b162328bdf5e4c3587a4c44f90798c368..32e4f1c5f52e8e91ad45da2768e7829a60ecfb95 100644
--- a/web-vue/src/components/logView/view-pre.vue
+++ b/web-vue/src/components/logView/view-pre.vue
@@ -254,11 +254,13 @@ export default {
   white-space: nowrap;
   position: unset;
 }
-.item {
-}
 .linenumber {
   color: #e6e6e6;
   padding-right: 4px;
   opacity: 0.6;
+  -webkit-user-select: none; /* Safari */
+  -moz-user-select: none;    /* Firefox */
+  -ms-user-select: none;     /* Internet Explorer/Edge */
+  user-select: none;
 }
 </style>