diff --git a/ui/common/css/abstract/_mixins.scss b/ui/common/css/abstract/_mixins.scss
index 53c629d980f19..cae7c94feb00e 100644
--- a/ui/common/css/abstract/_mixins.scss
+++ b/ui/common/css/abstract/_mixins.scss
@@ -156,3 +156,10 @@
   overflow: hidden;
   text-overflow: ellipsis;
 }
+
+@mixin prevent-select {
+  user-select: none;
+  -webkit-user-select: none;
+  -moz-user-select: none;
+  -ms-user-select: none;
+}
\ No newline at end of file
diff --git a/ui/common/css/header/_header.scss b/ui/common/css/header/_header.scss
index a246b28ed6a96..a44b898435dd9 100644
--- a/ui/common/css/header/_header.scss
+++ b/ui/common/css/header/_header.scss
@@ -11,7 +11,7 @@ body > header {
   z-index: $z-site-header-106;
   max-width: 1800px;
   margin: 0 auto;
-  user-select: none;
+  @include prevent-select;
 
   @include mq-sticky-header {
     max-width: unset;
diff --git a/ui/lobby/css/_table.scss b/ui/lobby/css/_table.scss
index 00222a9a36230..45d80baee2ea3 100644
--- a/ui/lobby/css/_table.scss
+++ b/ui/lobby/css/_table.scss
@@ -1,6 +1,7 @@
 .lobby {
   &__table {
     @extend %flex-column;
+    @include prevent-select;
 
     position: relative;
   }
diff --git a/ui/lobby/css/app/_app.scss b/ui/lobby/css/app/_app.scss
index 2fe0bb360b589..024a5b271f4cd 100644
--- a/ui/lobby/css/app/_app.scss
+++ b/ui/lobby/css/app/_app.scss
@@ -7,6 +7,7 @@
   @extend %flex-column;
 
   @include lobby-app-size;
+  @include prevent-select;
 
   user-select: none;