CSS Bookmark Hack

cssBookmark.js

// Enter this code in to the URL field of a bookmark in chrome
javascript: (function() %7B var elements = document.body.getElementsByTagName('*'); var items = []; for (var i = 0; i < elements.length; i++) %7B if (elements[i].innerHTML.indexOf('* %7B background:#000!important;color:#0f0!important;outline:solid #f00 1px!important; background-color: rgba(255,0,0,.2) !important; }') != -1) { items.push(elements[i]); } } if (items.length > 0) { for (var i = 0; i < items.length; i++) { items[i].innerHTML = ''; } } else { document.body.innerHTML += '<style>* { background:#000!important;color:#0f0!important;outline:solid #f00 1px!important; background-color: rgba(255,0,0,.2) !important; }\ * * { background-color: rgba(0,255,0,.2) !important; }\ * * * { background-color: rgba(0,0,255,.2) !important; }\ * * * * { background-color: rgba(255,0,255,.2) !important; }\ * * * * * { background-color: rgba(0,255,255,.2) !important; }\ * * * * * * { background-color: rgba(255,255,0,.2) !important; }\ * * * * * * * { background-color: rgba(255,0,0,.2) !important; }\ * * * * * * * * { background-color: rgba(0,255,0,.2) !important; }\ * * * * * * * * * { background-color: rgba(0,0,255,.2) !important; }</style>'; } })();