class Activity(OrderedModel):
    prompt_title = models.CharField(max_length=300)
    prompt_content = HTMLField()
    prompt_assets = MultiFileField(upload_to="assets/%Y/%m", blank=True)

    feature1_title = models.CharField(max_length=300, blank=True)
    feature1_content = HTMLField(blank=True)
    feature1_image = MultiFileField(upload_to="assets/%Y/%m", blank=True)

    feature2_title = models.CharField(max_length=300, blank=True)
    feature2_content = HTMLField(blank=True)
    feature2_image = MultiFileField(upload_to="assets/%Y/%m", blank=True)