Fade-out HTML element every day until it fully disappears

fadeout-html-element.js

const el = document.querySelector('[style*=waska]')
const parent = el.parentElement.parentElement.parentElement.parentElement.parentElement.parentElement;
const futureDate = new Date('2022-06-28 12:00:00')
const startDate = new Date('2022-05-19');

const interval = setInterval(() => {
  const nowDate = Date.now();
  const percent = Math.round((futureDate.getTime() - nowDate) * 100 / (futureDate.getTime() - startDate.getTime()) * 100) / 100
  console.log(percent)
  if (percent <= 5) {
    parent.remove();
    clearInterval(interval)
  } else {
    parent.style.opacity = percent/100;
  }
}, 30)