diff --git a/templates/admin/default/assets/css/admin.less b/templates/admin/default/assets/css/admin.less
index 86955cd52..03104b881 100755
--- a/templates/admin/default/assets/css/admin.less
+++ b/templates/admin/default/assets/css/admin.less
@@ -956,4 +956,22 @@ label {
 // Modal is no longer limited
 .modal-body {
     max-height: none;
+}
+
+// -- Table sorter --
+th.header { 
+    background: url("data:image/gif;base64,R0lGODlhFQAJAIAAACMtMP///yH5BAEAAAEALAAAAAAVAAkAAAIXjI+AywnaYnhUMoqt3gZXPmVg94yJVQAAOw==") no-repeat center right;     
+    cursor: pointer; 
+    font-weight: bold; 
+    padding-left: 20px; 
+    border-right: 1px solid #dad9c7; 
+    margin-left: -1px; 
+} 
+
+th.headerSortUp { 
+    background: #3399FF url("data:image/gif;base64,R0lGODlhFQAEAIAAACMtMP///yH5BAEAAAEALAAAAAAVAAQAAAINjB+gC+jP2ptn0WskLQA7") no-repeat center right; 
+}
+
+th.headerSortDown { 
+    background: #3399FF url("data:image/gif;base64,R0lGODlhFQAEAIAAACMtMP///yH5BAEAAAEALAAAAAAVAAQAAAINjI8Bya2wnINUMopZAQA7") no-repeat center right; 
 }
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