div[class*=cspace-ui-batch--MergeAuthorityItemsBatchJob],
div[class*=cspace-ui-batch--BulkObjectEditBatchJob] {
  height: 500px;
  width: 850px;
}

div[class*=cspace-ui-batch--MergeAuthorityItemsBatchJob] > div > fieldset {
  max-width: 50%;
}