Improve the look of error messages in web console

h2/src/main/org/h2/server/web/WebApp.java

@@ -917,7 +917,7 @@ public class WebApp {
                     PageParser.escapeHtml(profClose) +
                     "</span>";
             } else {
-                success = "${text.login.testSuccessful}";
+                success = "<div class=\"success\">${text.login.testSuccessful}</div>";
             }
             session.put("error", success);
             // session.put("error", "${text.login.testSuccessful}");

h2/src/main/org/h2/server/web/res/stylesheet.css

@@ -191,11 +191,25 @@ td.empty {
 }
 
 .error {
-    color: #ff0000;
+    color: #882222;
 }
 
-p.error {
-    color: #ff0000;
+div.error {
+    background-color: #ffdddd;
+    border-color: #eecccc;
+}
+
+div.success {
+    color: #337733;
+    background-color: #ddffdd;
+    border-color: #cceecc;
+}
+
+div.error, div.success {
+    border-radius: 4px;
+    padding: 10px;
+    border-width: 1px;
+    border-style: solid;
 }
 
 input.button {