title: <button> not working in IE8
body: <p>I have a number of buttons on my website using the button tag, and while rendering fine on IE8, they are not clickable (clicking them doesn't send the user to the new url).  Are there any solutions to fix this for IE?  Is it because I'm wrapping the button in an  tag?  Is it because I'm using a class name of "button"?</p>
  
  <p>The code is:</p>
  
  <pre><code>&lt;a href="product_home.html"&gt;
  &lt;button class="button green big_button"&gt;Learn more&lt;/button&gt;
  &lt;/a&gt; 
  </code></pre>