diff --git a/404.html b/404.html
index 2d0049b..abe3bc2 100644
--- a/404.html
+++ b/404.html
@@ -120,6 +120,10 @@
 	:-ms-input-placeholder {
 		color: rgba(0,0,0,.6);
 	}
+	button::-moz-focus-inner {
+		border: 0;
+		padding: 0;
+	}
 	h1, h2 {
 		text-transform: uppercase;
 		font-style: normal;
diff --git a/index.html b/index.html
index a794ce8..477622a 100644
--- a/index.html
+++ b/index.html
@@ -119,6 +119,10 @@
 	:-ms-input-placeholder {
 		color: rgba(0,0,0,.6);
 	}
+	button::-moz-focus-inner {
+		border: 0;
+		padding: 0;
+	}
 	h1, h2 {
 		text-transform: uppercase;
 		font-style: normal;