title: What does width:*; do in CSS?
body: <p>I have been told that I can use * to make a width fill out the remaining space, ex. with several <code>div</code>s within another <code>div</code>.</p>
  
  <p>It works when I write it in the code as well, but... I need a relevant source before I am allowed to use it in my semester project, can anyone help me out?</p>
  
  <pre><code>div {
      width:*;
  }
  </code></pre>