title: css make background image position fixed and scroll content up
body: <p>How can we do something similar as done in this example <a href="http://theme.nileforest.com/html/mazel-v1.1/home-text-rotator1.html">http://theme.nileforest.com/html/mazel-v1.1/home-text-rotator1.html</a></p>
  
  <p>They are keeping background image fixed and contents over it. I am not sure how they are doing it it possible with css only or they are using java-script.</p>
  
  <p>I am still trying to figure it out.</p>
  
  <p>Any fixed example or pointer would be great to start with</p>