--- Source/WebKit/gtk/resources/error.html.orig
+++ Source/WebKit/gtk/resources/error.html
@@ -21,12 +21,12 @@
 }
 
 #errorTitleText {
- font-size: 120%;
+ font-size: 120%%;
  font-weight: bold;
 }
 
 #errorMessageText {
- font-size: 80%;
+ font-size: 80%%;
 }
 
 </style>