diff --git a/assets/css/base.css b/assets/css/base.css
index 18ed320ba3..e9690a6403 100644
--- a/assets/css/base.css
+++ b/assets/css/base.css
@@ -1575,51 +1575,6 @@ form .formw .freeze {
     background-color: #62cffc;
 }
 
-/* header cell in data table in tools */
-.data_table {
-    margin-bottom: 18px;
-    width: 100%;
-    border: 1px solid #DDDDDD;
-}
-
-.data_table th, .data_table td {
-    border-top: 1px solid #DDDDDD;
-    line-height: 18px;
-}
-
-.data_table th {
-    padding: 8px 10px;
-    font-weight: normal;
-    background-color: #EEEEEE;
-    border-bottom: 1px solid #DDDDDD;
-    color: #333;
-}
-
-.data_table th a {
-    color: #333;
-}
-
-.data_table_no_border {
-    border-collapse: collapse;
-    border-spacing: 0;
-    font-size: 12px;
-    margin-bottom: 15px;
-    margin-top: 8px;
-    text-align: left;
-    width: 100%;
-}
-
-.data_table_no_border td {
-    line-height: normal;
-    padding: 6px;
-    text-align: left;
-    vertical-align: middle;
-}
-
-.data_table tr.row_odd {
-    background-color: #F9F9F9;
-}
-
 .attendance-users-table .data_table tr.row_odd {
     height: 64px;
 }
@@ -1636,21 +1591,6 @@ form .formw .freeze {
     height: 60px;
 }
 
-.data_table_no_border td .highlight {
-    font-weight: bold;
-}
-
-.data_table_pagination {
-    width: 100%;
-    margin-top: 5px;
-    margin-bottom: 5px;
-}
-
-.tabs-margin, .btn-toolbar {
-    margin-bottom: 15px;
-    margin-top: 15px;
-}
-
 .form-stacked .label {
     display: block;
     float: none;
@@ -1708,9 +1648,6 @@ form .formw .freeze {
     background-color: #FFFFFF;
 }
 
-.skill-options .load_wheel {
-}
-
 .skill-options .skill-winner {
     list-style: none;
     margin: 0;