title: Matching a regex in html, ignoring spaces, and quotation marks
body: <p>I need to find a certain chunk from a group of HTML files and delete it from them all.  The files are really hacked up HTML, so instead of parsing it with HtmlAgility pack as I was trying before, I would like to use a simple regex.  </p>
  
  <p>the section of html will always look like this:</p>
  
  <pre><code>&lt;CENTER&gt;some constant text &lt;img src=image.jpg&gt; more constant text: 
   variable section of text&lt;/CENTER&gt;
  </code></pre>
  
  <p>All of the above can be any combination of upper and lower case, and notice that it is img src=image.jpg and not img src="image.jpg"...  And there can be any number of white space characters in between the constant characters.</p>
  
  <p>here are some examples:</p>
  
  <pre><code>    &lt;CENTER&gt;This page has been visited 
  &lt;IMG SRC=http://place.com/image.gif ALT="alt text"&gt;times since 10th July 2007
  &lt;/CENTER&gt;
  </code></pre>
  
  <p>or</p>
  
  <pre><code>    &lt;center&gt;This page has been visited 
  &lt;IMG src="http://place.com/image.gif" Alt="Alt Text"&gt; 
  times since 1st October 2005&lt;/center&gt; 
  </code></pre>
  
  <p>What do you think would be a good way to match this pattern?</p>