title: asp:button disappears in IE7, but stays in IE8. Why?
body: <p>I have the following html which is display correctly in IE8. Below is the html and the css for grey_btn_75. Any idea why this would be happening?</p>
  
  <pre><code>&lt;div style="float: left; width: 70px; margin-right: 25px; padding-top: 60px;
              margin-left: 25px"&gt;
  
  &lt;asp:Button ID="btnAddAll" runat="server" Text="Add All" 
              OnClick="btnAddAll_Click"
              CssClass="grey_btn_75" /&gt;
  
  &lt;div class="spacer"&gt;&lt;/div&gt;
  
  &lt;asp:Button ID="btnAdd" runat="server" Text="Add"
              OnClick="btnAdd_Click" 
              CssClass="grey_btn_75" /&gt;
  
  &lt;div class="spacer"&gt;&lt;/div&gt;
  
  &lt;asp:Button ID="btnRemove" runat="server" Text="Remove" 
              OnClick="btnRemove_Click"
              CssClass="grey_btn_75" /&gt;
  
  &lt;div class="spacer"&gt;&lt;/div&gt;
  
  &lt;asp:Button ID="btnRemoveAll" runat="server" Text="Remove All" 
              CssClass="grey_btn_75"
              OnClick="btnRemoveAll_Click" /&gt;&lt;br /&gt;
  
  &lt;/div&gt;
  </code></pre>
  
  <p>CSS:</p>
  
  <pre><code>.grey_btn_75
  {
  background: url(../images/grey-75px.png);
  background-repeat: no-repeat;
  border-style: none;
  font-family: Arial,Helvetica,Sans-Serif;
  font-size: 12px;
  font-weight: bold;
  width: 75px;
  height: 23px;
  color: #000000;
  cursor: pointer;
  }
  </code></pre>
  
  <p>Things I have tried so far:</p>
  
  <p>I removed the CssClass and the buttons still did not show up.
  I modifed the CssClass and the buttons still did not show up.
  I put other controls such as an asp:Label and and asp:ImageButton and they showed up fine.
  I tried putting a new button and it did not show up.</p>