title: Bootstrap affix fullscreen
body: <p>I want to do this:</p>
  
  <p><img src="https://i.imgur.com/XjQtCIF.jpg" alt="sceenshot"> "screen"</p>
  
  <p>I have page in Boostrap and it is working great. I would like to add floating left div over page. So this is not dependend on content, but its over content. So basically I need CSS position: absolute with dynamic top.</p>
  
  <p>I try many tips, but nothing works. I tried add affix.js before #wrap content, but on scroll content going under affix.</p>