Bookmarklet to hide fixed position elements and unlock scrolling; good for decluttering websites

hide-fixed-bookmarklet.js

javascript:
/* Hide fixed elements and unlock scrolling. */
(()=>{
  /* Unlock scrolling. */
  for (let el of [document.documentElement, document.body]) {
    let cs = getComputedStyle(el);
    if (['hidden', 'clip'].includes(cs.overflowY)) el.style.setProperty('overflow', 'visible', 'important');
    if (cs.position === 'fixed') el.style.setProperty('position', 'static', 'important');
  }
  /* Hide fixed position elements. */
  for (let el of document.body.querySelectorAll('*')) {
    let cs = getComputedStyle(el);
    if (cs.position === 'fixed') el.style.setProperty('display', 'none', 'important');
    else if (cs.position === 'sticky') el.style.setProperty('position', 'static', 'important');
  }
})()