nextcloud-server/core/css/whatsnew.scss

/*!
 * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */
.whatsNewPopover {
  bottom: 35px !important;
  left: 15px !important;
  width: 270px;
  z-index: 700;
}

.whatsNewPopover p {
  width: auto !important;
}

.whatsNewPopover .caption {
  font-weight: bold;
  cursor: auto !important;
}

.whatsNewPopover .icon-close {
  position: absolute;
  right: 0;
}

.whatsNewPopover::after {
  content: none;
}