title: How to overlay one div over another div over an other div
body: <p>I'd like to know if using position:absolute like mentioned in this post: 
  "<a href="https://stackoverflow.com/questions/2941189/how-to-overlay-one-div-over-another-div">How to overlay one div over another div</a>"
  works the same for 3 divs over an other. Is it right to work with a whole absolute page? Can't this cause problems when building a responsive website? </p>