Tips for defining CSS styles for the background color of <td> elements within a sitemap

I am facing a similar issue to the one discussed in this thread Possible to fill a table cell with a bg color?.

The challenge I am encountering is related to applying CSS styles to the td tags within a sitemap structure.

(Although it functions correctly in Firefox and IE8, it does not render as expected in IE7)

Here is the CSS code that I am using:

.subMenu
{
    z-index: 100;
    min-width: 118px;
    border: solid 1px #545454;
    text-align: center;
}
.subMenuItem
{
    width: 100%;
    min-width: 118px;
    padding: 5px;
    border-bottom: solid 1px #545454;
    background-color: #4D97CB;
    color: #DDDDDD;
    text-align: center;
    font-weight: bold;
    font-size: 11px;
}

This results in the following HTML markup:

<div id="ctl00_mnuNavigationn1Items" class="ctl00_mnuNavigation_0 subMenu ctl00_mnuNavigation_7">
    <table border="0" cellpadding="0" cellspacing="0">
        <tr onmouseover="Menu_HoverDynamic(this)" onmouseout="Menu_Unhover(this)" onkeyup="Menu_Key(this)" id="ctl00_mnuNavigationn3">
            <td>
                <table class="subMenuItem ctl00_mnuNavigation_6" cellpadding="0" cellspacing="0" border="0" width="100%">
                    <tr>
                        <td style="white-space:nowrap;width:100%;">
                            <a class="ctl00_mnuNavigation_1 subMenuItem ctl00_mnuNavigation_5" href="/Asidua.BPM.Web.WebApplication/Expenses/Default.aspx" style="border-style:none;font-size:1em;">Click here</a>
                        </td>
                    </tr>
                </table>
            </td>
        </tr>
    </table>
</div>

Answer №1

To style the background, apply the CSS to the td element instead of the a element. Elements like links, emphasis (em), strong, or spans do not natively support setting backgrounds.

[UPDATE] If you didn't create this code yourself, here are some options:

  1. Obtain the HTML/CSS generator source and adjust it to include the necessary CSS attributes for td elements.

  2. If this is server-side, check if you can add a filter to your app's output that adds the required CSS.

  3. If all else fails, utilize client-side JavaScript to traverse the DOM and insert the attributes during onload.

Answer №2

One alternative approach could involve configuring the a element's display property to block within the CSS stylesheet. By doing so, the element would expand to occupy the full space of its parent container.

Moreover, in cases where the a element is serving as a background-color component, it might be necessary to explicitly define its height and width values to align with those of the parent element.

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