icingaweb2/modules/monitoring/public/css/module.less

table.action.comments td p, table.action.downtimes td p {
  margin: 0;
  font-size: 0.8em;
}

table.action.comments td a, table.action.downtimes td a {
  font-weight: bold;
}

.content.processinfo table.avp th {
  width: 16em;
}