-.mw-htmlform-ooui .mw-htmlform-field-HTMLCheckMatrix,
-.mw-htmlform-ooui .mw-htmlform-matrix,
-.mw-htmlform-ooui .mw-htmlform-matrix tr {
- width: 100%;
+.mw-htmlform-ooui .mw-htmlform-matrix {
+ border-spacing: 0;
+}
+
+.mw-htmlform-ooui .mw-htmlform-matrix td {
+ padding: 0.35em 0.7em;
+ -webkit-transition: background-color 250ms;
+ -moz-transition: background-color 250ms;
+ transition: background-color 250ms;
+}
+
+.mw-htmlform-ooui .mw-htmlform-matrix tbody tr:nth-child( even ) td {
+ background-color: #f8f9fa;