diff --git a/guacamole/src/main/webapp/styles/guacamole.css b/guacamole/src/main/webapp/styles/guacamole.css
index ba7319419..c69fd5b51 100644
--- a/guacamole/src/main/webapp/styles/guacamole.css
+++ b/guacamole/src/main/webapp/styles/guacamole.css
@@ -146,20 +146,11 @@ div.errorDialogMiddle {
 
 div.errorDialog {
 
-    background: #D44;
-    border: 1px solid black;
+    opacity: 0.75;
+    background: #D22;
+    border: 1px solid #F44;
     padding: 1em;
 
-    -khtml-border-radius: 0.5em;
-    -webkit-border-radius: 0.5em;
-    -moz-border-radius: 0.5em;
-    border-radius: 0.5em;
-
-    -moz-box-shadow: 0 0.25em 0.75em black, inset 0.1em 0.1em 0.5em #F99, inset -0.1em -0.1em 0.75em #800;
-    -webkit-box-shadow: 0 0.25em 0.75em black, inset 0.1em 0.1em 0.5em #F99, inset -0.1em -0.1em 0.75em #800;
-    -khtml-box-shadow: 0 0.25em 0.75em black, inset 0.1em 0.1em 0.5em #F99, inset -0.1em -0.1em 0.75em #800;
-    box-shadow: 0 0.25em 0.75em black, inset 0.1em 0.1em 0.5em #F99, inset -0.1em -0.1em 0.75em #800;
-
     max-width: 75%;
     text-align: left;
 
@@ -170,7 +161,6 @@ div.errorDialog h1 {
     margin: 0;
     margin-bottom: 0.25em;
     text-align: center;
-    text-shadow: 0 0 0.25em white;
 }
 
 div.errorDialog div.buttons {