title: What do all these numbers mean after the background?
body: <p>I have seen:</p>
  
  <pre><code>background: url("images/tabs.gif") repeat scroll 100% 0 transparent;
  background: url("images/tabs.gif") repeat scroll 0 0 #BBDDFF;
  </code></pre>
  
  <p>And I dont get what all the values after the bracket are meant to represent. Is there a doucment that will tell me?</p>
  
  <p>The only stuff I could find online was referring to individual background props..</p>