diff --git a/examples/web/react/components/keyboard-chip8/keyboard-chip8.css b/examples/web/react/components/keyboard-chip8/keyboard-chip8.css
index 60e0d8f80e26b585c403aace668127daf5d66001..7b49d14e226e26d35d0172416faebe768a8eda01 100644
--- a/examples/web/react/components/keyboard-chip8/keyboard-chip8.css
+++ b/examples/web/react/components/keyboard-chip8/keyboard-chip8.css
@@ -2,12 +2,12 @@
 .keyboard-chip8 {
     font-size: 0px;
     text-align: center;
-    touch-callout: none;
-    -o-touch-callout: none;
-    -ms-touch-callout: none;
-    -moz-touch-callout: none;
-    -khtml-touch-callout: none;
-    -webkit-touch-callout: none;
+    touch-callout: none !important;
+    -o-touch-callout: none !important;
+    -ms-touch-callout: none !important;
+    -moz-touch-callout: none !important;
+    -khtml-touch-callout: none !important;
+    -webkit-touch-callout: none !important;
     user-select: none;
     -o-user-select: none;
     -ms-user-select: none;
diff --git a/examples/web/react/components/keyboard-gb/keyboard-gb.css b/examples/web/react/components/keyboard-gb/keyboard-gb.css
index 2039d4932b21ae19676cbc75571eb7fad2800e81..70d2cd4e9ea8065fadfa170f333c286888333f1d 100644
--- a/examples/web/react/components/keyboard-gb/keyboard-gb.css
+++ b/examples/web/react/components/keyboard-gb/keyboard-gb.css
@@ -2,12 +2,12 @@
 .keyboard-gb {
     font-size: 0px;
     text-align: center;
-    touch-callout: none;
-    -o-touch-callout: none;
-    -ms-touch-callout: none;
-    -moz-touch-callout: none;
-    -khtml-touch-callout: none;
-    -webkit-touch-callout: none;
+    touch-callout: none !important;
+    -o-touch-callout: none !important;
+    -ms-touch-callout: none !important;
+    -moz-touch-callout: none !important;
+    -khtml-touch-callout: none !important;
+    -webkit-touch-callout: none !important;
     user-select: none;
     -o-user-select: none;
     -ms-user-select: none;