metamask-extension/ui/components/institutional/custody-confirm-link-modal/index.scss

.custody-confirm-link {
  &__description {
    border-bottom: 1px solid var(--brand-colors-grey-grey200);
  }

  &__img {
    margin: 0 20px;
    display: block;
    padding: 20px 0;
    width: 45px;
    text-align: center;
  }

  &__btn {
    width: 300px !important;
    margin: 20px auto;
  }
}