IE zoom features upsets simple HTML sent from asp.net

Some simple HTML is being wrongly displayed in Internet Explorer when the user has a Zoom other than 100%

I have a large web site with 230+ web pages, written in asp.net
About 10 pages are for the end user, the rest are for back end internal staff.
I intentionally keep things simple on the HTML side.
In particular, I write data out in tables so that they will display properly in "Right to Left" languages.
E.g. the code snippet below just shows the logo, a vertical bar then the word "login" or "connexion" in French.
This is displayed correctly in English and in reverse order on RTL languages.

Everything is fine except for a group of users who use the Zoom feature of Internet Explorer.

Often the word login uderlays the Logo - see the 2 attached images.

Below is the CSS

Regards
Andy

.PanelLogo
{
    margin-bottom: 10px;
    vertical-align: middle;
}
.LogoTopBar
{
    height: 70px;
}
.SeparatorTopBar
{
    height: 70px;
}
.TextTopBar
{
    font-size: 2em;
    color: #a9a9a9;
}



<body>
    <form id="form1" runat="server">
        <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>
        <table>
            <tr>
                <td valign="middle">
                    <asp:Image ID="ImageClinisafeLogo" runat="server" ImageUrl="~/Images/Clinisafe-Logo.gif"
                        AlternateText="CliniSafe Logo" CssClass="LogoTopBar"  />
                </td>
                <td valign="middle">
                    <asp:Image ID="ImageGreyBar" runat="server" ImageUrl="~/Images/GreyBar.jpg" CssClass="SeparatorTopBar" />
                </td>
                <td valign="middle">
                    <asp:Label ID="LabelTopMessage" runat="server" Text="online" CssClass="TextTopBar"></asp:Label>
                </td>
            </tr>
        </table>

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image-overlay-problem.GIF
image-correct.GIF
AndyCollinsonAsked:
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AndyCollinsonAuthor Commented:
I found the answer myself.

It is critical that *every* image has both height and width - otherwise IE7 gets confused when using zoom.
0

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