CSS Property Value How to - calc(100% - 200px); shrink as windows resize

Question

We would like to know how to calc(100% - 200px); shrink as windows resize.

Answer


<!DOCTYPE html>
<html>
<head>
<style type='text/css'>
div {<!--from ww  w.  j  a v a 2s.com-->
  width: 100%;
  margin: 0px 100px;
  background-color: red;
}

section {
  width: calc(100% - 200px);
  margin: 0px 100px;
  background-color: blue;
}
</style>
</head>
<body>
  <div>Content</div>
  <section>Content 2</section>
</body>
</html>

The code above is rendered as follows: