CSS Grid Layout for R Markdown and Shiny
source("https://install-github.me/atusy/cssgrid")
library(cssgrid) style <- "border: solid black;" grid_layout( grid_item("A", area = "a", style = style), grid_item("B", area = "b", style = style), grid_item("C", area = "c", style = style), cols = c("1fr 2fr"), rows = c("1fr 1fr"), areas = c("a b", "a c"), style = style )