asp:button disappears in IE7, but stays in IE8. Why?

Question

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?

<div style="float: left; width: 70px; margin-right: 25px; padding-top: 60px;
            margin-left: 25px">

<asp:Button ID="btnAddAll" runat="server" Text="Add All" 
            OnClick="btnAddAll_Click"
            CssClass="grey_btn_75" />

<div class="spacer"></div>

<asp:Button ID="btnAdd" runat="server" Text="Add"
            OnClick="btnAdd_Click" 
            CssClass="grey_btn_75" />

<div class="spacer"></div>

<asp:Button ID="btnRemove" runat="server" Text="Remove" 
            OnClick="btnRemove_Click"
            CssClass="grey_btn_75" />

<div class="spacer"></div>

<asp:Button ID="btnRemoveAll" runat="server" Text="Remove All" 
            CssClass="grey_btn_75"
            OnClick="btnRemoveAll_Click" /><br />

</div>

CSS:

.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;
}

Things I have tried so far:

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.

Answer 1

Your div width is 70px, your button is 75px. You need to clean that up.

Answer 2

The problem is with the styles. Try commenting them out to see which one (or the combination) is responsible for the buttons to disappear. Don't forget about the inline style of the top DIV as well.

This is a nice guide for button styles:

http://particletree.com/features/rediscovering-the-button-element/

People recommend

width:auto; overflow:visible;

specifically for IE

Answer 3

I think it is the color value you have set in your CSS. I got the same problem previously and what I did was change the color value to something else.