title: position:fixed + float:right, where is the div?
body: <p>I'm still studying HTML and CSS, perhaps this could be a silly mistake or not.</p>
  
  <p>Look in my HTML, I have the #welcome div, but it disappeared when I set float:right.</p>
  
  <p><a href="http://jsfiddle.net/TkQaU/1/" rel="nofollow">http://jsfiddle.net/TkQaU/1/</a></p>
  
  <p>(Chrome or Firefox)</p>
  
  <p>Thanks!</p>