Kill sticky headers.

kill-sticky.js

(function () { 
  var i, elements = document.querySelectorAll('body *');

  for (i = 0; i < elements.length; i++) {
    if (getComputedStyle(elements[i]).position === 'fixed') {
      elements[i].parentNode.removeChild(elements[i]);
    }
  }
})();

New url: https://alisdair.mcdiarmid.org/kill-sticky-headers/

Loved the sticky header on the new site. Loved killing it even more.
Thanks for this!