clusterize.css

/* max-height - the only parameter in this file that needs to be edited.
 * Change it to suit your needs. The rest is recommended to leave as is.
 */
.clusterize-scroll{
  max-height: 200px;
  overflow: auto;
}

/* By default extra tag .clusterize-keep-parity added to keep parity of rows.
 * Useful when used :nth-child(even/odd)
 */
.clusterize-extra-row.clusterize-keep-parity{
  display: none;
}

/* During initialization clusterize adds tabindex to force the browser to keep focus
 * on the scrolling list, see issue #11
 * Outline removes default browser's borders for focused elements.
 */
.clusterize-content{
    outline: 0;
}

/* centering message that appears when no data provided
 */
.clusterize-no-data td{
  text-align: center;
}