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  <p>This approach uses negative margins and padding to extend the background in both directions. This works great if you're using a single background color for the bar.</p>
  <section class="full-width">
    <p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Dignissimos unde autem exercitationem doloremque! Aliquid, ut dolorem voluptas quos earum vitae ipsa rem voluptate eum ab quisquam at, corrupti officia totam!</p>
  <p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Eligendi modi consectetur officia dolorum, consequatur autem ipsum odit corrupti vero, suscipit, error laboriosam vel recusandae architecto dignissimos id reprehenderit aperiam itaque!</p>


                body {
  max-width: 500px;
  margin: 0 auto;
.full-width {
  margin: 0 -9999rem;
  padding: 0 9999rem;
  background: lightcoral;
p {
  margin: 0;
  padding: 1rem;