root = Card([header, todayRevenue, comparison, trendChart])
header = CardHeader("Mid-Morning Check-in", "Revenue snapshot as of 10:30 AM")
todayRevenue = Card([todayLabel, todayValue], "sunk")
todayLabel = TextContent("Revenue so far today", "small")
todayValue = TextContent("$3,847", "large-heavy")
comparison = Callout("success", "Ahead of yesterday", "Up 12% vs same time yesterday ($3,435 at 10:30 AM)")
trendChart = HorizontalBarChart(["Today", "Yesterday (same time)"], [todaySeries, yesterdaySeries], "grouped", "Revenue ($)", "Period")
todaySeries = Series("Today", [3847])
yesterdaySeries = Series("Yesterday", [3435])