diff --git a/examples/web/debug.css b/examples/web/debug.css
index e4b0114329f1ddc881d99223109f87837910388c..98018fb9e159f77665abac8535af0c904a7defeb 100644
--- a/examples/web/debug.css
+++ b/examples/web/debug.css
@@ -1,4 +1,4 @@
-.debug > .canvas-tiles {
-    background-color: #000000;
-    width: 256px;
-}
+.debug > .canvas-tiles {
+    background-color: #000000;
+    width: 256px;
+}
diff --git a/examples/web/index.css b/examples/web/index.css
index a281caea98cc24301fd7b8741364dc62479d6491..850d93f7baf978e698ca0ee83e8f34f6d0722cdd 100644
--- a/examples/web/index.css
+++ b/examples/web/index.css
@@ -78,6 +78,12 @@ p {
     display: none;
     position: absolute;
     right: 22px;
+    user-select: none;
+    -o-user-select: none;
+    -ms-user-select: none;
+    -moz-user-select: none;
+    -khtml-user-select: none;
+    -webkit-user-select: none;
 }
 
 .main > .side-left .canvas-container > .canvas-close > img {