todo_w3css_accordions.R

#' W3.CSS Accordions
#'
#' Implementation of W3.CSS Accordions, as described in
#' [https://www.w3schools.com/w3css/w3css_accordions.asp](https://www.w3schools.com/w3css/w3css_accordions.asp)
#'
#' @return
#' @export
#'
#' @examples
#'
#' TODO