diff --git a/layout/html/document/src/html.css b/layout/html/document/src/html.css
index 416675a3ae1..8e81346acdd 100644
--- a/layout/html/document/src/html.css
+++ b/layout/html/document/src/html.css
@@ -461,7 +461,7 @@ input[type=button] {
 }
 
 input[type=button]:active {
-  border: 1px solid black;
+  border: 2px solid black;
 }
 
 input[type=button]:-moz-buttonlabel {
diff --git a/layout/style/html.css b/layout/style/html.css
index 416675a3ae1..8e81346acdd 100644
--- a/layout/style/html.css
+++ b/layout/style/html.css
@@ -461,7 +461,7 @@ input[type=button] {
 }
 
 input[type=button]:active {
-  border: 1px solid black;
+  border: 2px solid black;
 }
 
 input[type=button]:-moz-buttonlabel {