/* let body = document.body;

let div = document.createElement("div");
div.classList = "data-container";
let input = document.createElement("input");
input.id = "data";
input.type = "date";
input.name = "data";
let button = document.createElement("button");
button.id = 'calc'
button.innerHTML = "confirmar";

div.appendChild(input);
div.appendChild(button);
body.appendChild(div);

let div2 = document.createElement("div");
div2.classList = "dias-container" */