$(".progress").each((_, progress) => {
  const steps = $("> div.right > div", progress);

  steps.each((i, el) => $(el).mouseenter((e) => onHover(el)));

  const onHover = (el) => {
    steps.removeClass(["current", "prev"]);
    el.classList.add("current");
    $(el).prevAll().slice(1).addClass("prev");
  };
});