Arc Boost for blocking distracting sites

content.js

const domains = ['cnn.com'];
const content = 'Nope!';

if (domains.includes(window.location.hostname.replace('www.',''))) {
  document.body.style.backgroundColor = 'red';
  document.body.style.color = 'white';
  document.body.style.textAlign = 'center';
  document.body.style.fontWeight = 'bold';
  document.body.style.fontFamily = 'sans-serif';
  document.body.style.textTransform = 'uppercase';
  document.body.style.paddingTop = '30%';
  document.body.style.fontSize = '60px';
  document.getElementsByTagName('body')[0].innerHTML = content;
}