discourse/app/assets/stylesheets/common/base/edit-topic-status-update-modal.scss

.edit-topic-timer-modal {
  .modal-body {
    max-height: none;
  }

  input.date-picker, input[type="time"] {
    width: 150px;
    text-align: left;
  }

  label {
    display: inline-block;
  }

  .btn.pull-right {
    margin-right: 10px;
  }

  .future-date-input {
    input {
      margin: 0;
    }

    .alert-info {
      margin: 0 -15px -15px -15px;
    }

    .pika-single {
      position: relative !important;
    }

    .topic-status-info {
      border: none;
      padding: 0;

      h3 {
        font-weight: normal;
        font-size: 15px;
      }
    }
  }
}