codeswing.json

{
  "scripts": [],
  "styles": []
}

index.html

<div class="wrapper-old">
  <div class="content"></div>
</div>

<div class="wrapper-new">
  <div class="content"></div>
</div>

script.js

‎‎​

style.css

* {
  box-sizing: border-box;
}

.wrapper-new {
  width: min(1160px, 100% - 4rem);
  margin-inline: auto;
}

.wrapper-old {
  padding: 2rem;
  max-width: 1160px;
  box-sizing: content-box;
  margin-inline: auto;
}

.content {
  height: 40px;
  background: black;
}