metamask-extension/ui/app/components/pages/add-token/index.scss

@import './token-list/index';

.add-token {
  &__custom-token-form {
    padding: 8px 16px 16px;

    input[type="number"]::-webkit-inner-spin-button {
      -webkit-appearance: none;
      display: none;
    }

    input[type="number"]:hover::-webkit-inner-spin-button {
      -webkit-appearance: none;
      display: none;
    }
  }

  &__search-token {
    padding: 16px;
  }

  &__token-list {
    margin-top: 16px;
  }
}