How to open hidden div on click?

Question

css

Good day! How to make a hidden div open on click and hide the previous one? This is how it is implemented on this site: barbecue-black.ru when you click to pass the test

Answer 1

https://jsfiddle.net/crazzy/y1v0so3w/

Answer 2

$("button").click(function(){
    $("div.raz").hide();
    $("div.dva").show();
});