<div class="checkbox"><input value="Yes" name="beta_interest" class="checkbox-input" id="beta_interest" type="checkbox"> <label for="beta_interest" class="checkbox-label icon-checkmark">Are you interested in joining program?</label></div> <div class="checkbox"><input value="Yes" name="opt_in" class="checkbox-input" id="opt_in" type="checkbox"> <label for="opt_in" class="checkbox-label icon-checkmark">Yes, I’m interested in receiving announcements</label></div> I need to hide or show the second div based on some dropdown condition. How do I hide or show?