diff --git a/app/src/main/webapp/WEB-INF/jsps/editor/Categories.jsp b/app/src/main/webapp/WEB-INF/jsps/editor/Categories.jsp
index 4ecfd5ed1..94ade045e 100644
--- a/app/src/main/webapp/WEB-INF/jsps/editor/Categories.jsp
+++ b/app/src/main/webapp/WEB-INF/jsps/editor/Categories.jsp
@@ -254,7 +254,7 @@
                 
                 <div class="modal-body">
 
-                    <div id="category-in-use" class="alert alert-danger" role="alert" style="display:none">
+                    <div id="category-in-use" style="display:none">
                         <p>
                             <s:text name="categoryDeleteOK.warningCatInUse"/>
                             <s:text name="categoryDeleteOK.youMustMoveEntries"/>
diff --git a/app/src/main/webapp/roller-ui/styles/roller.css b/app/src/main/webapp/roller-ui/styles/roller.css
index e4cc38cfc..2fb6c6d21 100644
--- a/app/src/main/webapp/roller-ui/styles/roller.css
+++ b/app/src/main/webapp/roller-ui/styles/roller.css
@@ -185,6 +185,13 @@ table.innertable tr .viewbody .bot {
     float: left;
 }
 
+#category-in-use {
+    background-color: #ffcccc;
+    border: 1px solid #ff0000;
+    padding: 10px;
+    border-radius: 5px;
+}
+
 /* sign-in */
 
 body {