title: Why does my page work in IE9's IE7 mode, but not in IE7 itself?
body: <p>I recently went live with our new home page, after heavily testing it in each of IE9's browser and document modes (<em>not</em> just compatibility mode, but actual IE7 and IE8 emulation). The site works in each mode, not to mention modern browsers. However, after it launched I got an email that said the site was very broken in IE7. I went to an abandoned machine and booted up Windows XP, started IE7, and loaded the page. To my horror, the layout was indeed broken! (NOT just the slideshow!)</p>
  
  <p><strong>Most importantly, why does <a href="http://www.semo.edu/new_home.htm" rel="noreferrer">my page</a> not work in IE7, even though it works in IE7 mode in IE9?</strong> And as a secondary question, what might be "wrong" with it?</p>
  
  <p><strong>Edit</strong>: I <em>have</em> figured out that one of my problems may be the slideshow, but adding <code>.ie7 #slideshow {display:none !important}</code> won't even hide the slideshow. I can't access it via CSS.</p>
  
  <p><strong>Edit 2</strong>: There is <em>another</em> problem that only shows up in native IE7 -- the footer on that home page, and <a href="http://www.semo.edu/building/" rel="noreferrer">this page</a>, is ultra-tiny text that can't be zoomed. It doesn't do this in IE9's IE7 mode (not compatibility), or in any other browser. Another example of the discrepancy.</p>