<script type="text/javascript">
	  $(window).scroll(function() {
		  if ($(this).scrollTop()>850){
			  $("#bio-title").fadeOut();
			  $("#bio-facts").css( "height", "450" );
			  } else {
			  $("#bio-title").fadeIn();
			  $("#bio-facts").css( "height", "200" );
			  }
		});
      </script>

      <div class="container">
      <div id="bio-title">...</div>
      <div id="bio-facts">-...-</div>
      </div>