title: jQuery - watch for element height change
body: <p>I have a element, which is absolute positioned and has a fixed height.</p>
  
  <p>This element has a lot of child elements, which could change their contents, and in consequence their height.
  The problem is that the container element doesn't auto expand to fit its children (because of it's fixed height and absolute position).</p>
  
  <p>How can I can resize the main container to match its children height?</p>