Here's a couple of tests which cover the indentation problems I've encountered

Multiple & nbsp; elements - followed by text and text in a strong tag

The count of nbsp before this line: 0
   The count of nbsp before this line: 3
      The count of nbsp before this line: 6

<pre>

The count of whitespace before this line: 0

   The count of whitespace before this line: 3

      The count of whitespace before this line: 6

<div style="white-space: pre;">

The count of whitespace before this line: 0
The count of whitespace before this line: 3
The count of whitespace before this line: 6