root = Card([header, pollForm])
header = CardHeader("Team Lunch Poll", "Where should we go for lunch on Friday?")
pollForm = Form("lunch-poll", formButtons, [voteField])
voteField = FormControl("Choose a restaurant", restaurantRadio)
restaurantRadio = RadioGroup("restaurant", [restaurant1, restaurant2, restaurant3])
restaurant1 = RadioItem("Mario's Italian Kitchen", "Classic pasta, wood-fired pizza, and tiramisu", "marios")
restaurant2 = RadioItem("Sakura Sushi Bar", "Fresh sushi, ramen bowls, and tempura", "sakura")
restaurant3 = RadioItem("The Green Bowl", "Healthy salads, grain bowls, and smoothies", "greenbowl")
formButtons = Buttons([submitBtn])
submitBtn = Button("Vote", null, "primary")