[static-web] Improve grass.css for the 500 page

[Andrea Veri <av src gnome org>]

commit 6b5b44e4bc6d7c5e4691a3e86b60817912ba09fa
Author: Andrea Veri <av gnome org>
Date:   Tue Mar 31 17:04:17 2015 +0200

    Improve grass.css for the 500 page

 error-500/500.html  |    2 +-
 error-500/grass.css |    9 +++++----
 2 files changed, 6 insertions(+), 5 deletions(-)
---
diff --git a/error-500/500.html b/error-500/500.html
index d02d6f8..37d0e47 100644
--- a/error-500/500.html
+++ b/error-500/500.html
@@ -28,7 +28,7 @@
        <div id="message">
         <h1>OOPS...You have just hit an error 500, all the ways to report the issue are
             available <a href="https://wiki.gnome.org/Sysadmin/Contact";>here</a>,
-            but before doing so please check the GNOME Infrastructure <a 
href="https://status.gnome.org>">status page</a>
+            but before doing so please check the <a href="https://status.gnome.org>">status page</a>
             for possible planned outages or maintenances.</h1>
        </div>
       </div>
diff --git a/error-500/grass.css b/error-500/grass.css
index 3a8c92e..19565b9 100644
--- a/error-500/grass.css
+++ b/error-500/grass.css
@@ -408,8 +408,9 @@ min-height: 240px;
 }
 
 #message {
-  text-align: center;
-  position: fixed;
-  margin-top: 100px;
-  margin-bottom: 100px;
+    text-align: center;
+    position: absolute;
+    margin-top: 100px;
+    margin-right: 20%;
+    margin-left: 5%;
 }