metamask-extension/ui/pages/institutional/connect-custody/index.scss

.custody-account-list {
  flex: 1;
  max-height: 50vh;
  overflow: auto;

  &__item {
    border-bottom: 1px solid #d2d8dd;

    input {
      margin: 12px 0 0 10px;
    }

    &__title {
      flex-flow: row;
    }

    &__name {
      display: block;
      white-space: nowrap;
      max-width: 200px;
      text-overflow: ellipsis;
      overflow: hidden;
    }

    &__clipboard {
      background-color: transparent;
    }
  }

  &__item:first-child {
    border-top: 1px solid #d2d8dd;
  }

  &__item:last-child {
    border: 0;
  }

  &__item:hover {
    background-color: rgba(0, 0, 0, 0.03);
  }

  &__buttons {
    border-top: 1px solid #d2d8dd;
  }

  &__button:not(:last-child) {
    margin-right: 16px;
  }
}