td.Xa:hover {outline: 1px solid #0F0} /* ascii */
td.Xl:hover {outline: 1px solid #0C0} /* latin1 */
td.Xz:hover {outline: 1px solid #F00} /* proposed */
td.Xa:hover {outline: 1px solid #0F0} /* ascii */
td.Xl:hover {outline: 1px solid #0C0} /* latin1 */
td.Xz:hover {outline: 1px solid #F00} /* proposed */