title: Persistent Header & Footer
body: <p>I have two divs with width 100%. I want one to always be on top of all content, and I want the second to be always on the bottom of everything. How can I do this? Preferably in pure CSS but I'll try jQuery/JS solutions if I need to.</p>
  
  <p>I tried adding the header using include("header.php"); and header.php contains just the HTML code of the header. However, it doesn't work, but putting that exact code in place of the include works fine. How can I fix this?</p>