Auto-refresh CSS in browser

refreshCss.js

// Copy paste in browser console
// F5 to stop interval
setInterval(function () {
  [].filter.call(document.querySelectorAll('link'), function(el) {
    return !/google|lorempixel/.test(el.href);
  }).forEach(function (el) {
    var href = el.href,
        date = '?' + new Date().getTime();
    el.href = /\?/.test(href) ? href.replace(/\?.+/, date) : href + date;
  });
}, 250);