Toggle images bookmarklet

(function() {
  var CLASS = 'hide-images';
  var STYLE = 'html body,html body *,html body *::before,html body *::after { background-image: none !important; }  html body img,html body iframe { opacity: 0.02 !important; }';
  var block = document.querySelector('.' + CLASS);

  // add/remove style block to override images
  if (block) block.remove();
  else {
    block = document.createElement('style');
    block.className = CLASS;
    block.innerHTML = STYLE;
    document.head.appendChild(block);
  }  
})();


/////////////////////////


javascript:(function(){var a="hide-images",b="html body,html body *,html body *::before,html body *::after { background-image: none !important; }  html body img,html body iframe { opacity: 0.02 !important; }",c=document.querySelector("."+a);c?c.remove():(c=document.createElement("style"),c.className=a,c.innerHTML=b,document.head.appendChild(c))})()