Delete the CSS class from a specific HTML element

Having just started learning HTML and CSS, I encountered an issue.

I applied a CSS class to a table element. Subsequently, I inserted a child table within the parent table. The problem arose when the CSS class of the parent table also influenced the child table, which is not desired.

Can someone guide me on how to prevent the CSS styles from the parent table affecting the child table?

Here is a snippet of my CSS:

.gtable {
    width: 100%;
}
.gtable th {
    padding: 5px 10px;
    text-align: left;
}
.gtableTH {
    text-align: center;
}
.gtable thead tr {
    border: 1px solid #CCCCCC;
    color: #333333;
}
.gtable thead th {
    background: none repeat scroll 0 0 #C0C0C0;
}
.gtable tbody tr:hover td {
    background-color: #FFFAE3;
}
.gtable td {
    padding: 5px 10px;
}
.gtable tbody tr td {
    border-bottom: 1px solid #EEEEEE;
}
.gtable tbody tr:nth-child(2n+1) .gtable thead th {
    background: -moz-linear-gradient(#FFFFFF, #EFEFEF) repeat scroll 0 0 transparent;
}

and here is my HTML code:

<table class="gtable">

                        <thead>

                            <tr>

                                <th>Drop Down Label</th>
                                <th>Drop Down Values</th>
                            </tr>

                        </thead>

                        <tbody class="ui-sortable">

                            <tr>

                                <td>Category 1</td>

                                <td>
                                    <table>
                                        <tbody class="ui-sortable"><tr>
                                            <td>
                                                Complaint
                                            </td>
                                            </tr>
                                            <tr>
                                            <td>
                                                Service Request
                                            </td>
                                            </tr>
                                            <tr>
                                            <td>
                                                Enquiry
                                            </td>
                                        </tr>
                                    </tbody></table>
                                </td>

                                <td>
                                     <button class="button small" type="submit">Edit</button>
                                </td>

                            </tr>

                        </tbody>
                    </table>

Answer №1

To target only immediate child elements, use the immediate child selector >. This will apply CSS properties only to direct descendants of the selector on the left side.

For example:

.box1 > img {
     border: 5px;
}

Only <img> tags directly inside the .box1 element will have a 5px border. If they are nested inside another element like

<a><img src=... /></a>
, they will not have any border.

Here is an example using this CSS:

.gtable {
    width: 100%;
}
.gtable > th {
    padding: 5px 10px;
    text-align: left;
}
.gtableTH {
    text-align: center;
}
.gtable > thead > tr {
    border: 1px solid #CCCCCC;
    color: #333333;
}
.gtable > thead > th {
    background: none repeat scroll 0 0 #C0C0C0;
}
.gtable > tbody > tr:hover > td {
    background-color: #FFFAE3;
}
.gtable > td {
    padding: 5px 10px;
}
.gtable > tbody > tr > td {
    border-bottom: 1px solid #EEEEEE;
}
.gtable > tbody > tr:nth-child(2n+1) >.gtable > thead > th {
    background: -moz-linear-gradient(#FFFFFF, #EFEFEF) repeat scroll 0 0 transparent;
}

Answer №2

UPDATE: After reviewing the code you provided, it appears that the issue stems from the selector .gtable td (and similar selectors with spaces) targeting any td within an element bearing the class gtable (including nested tables). To limit the selection to elements within the initial table only, consider assigning classes directly to those specific elements or utilizing a child selector such as

.gtable > tbody > tr > td
.

Answer №4

Instead of using

.gtable tbody, .gtable tr, .gtable td, .gtable th
in your Css to apply styles to all the child elements (tr, td, th) inside the parent table, it is recommended to avoid this approach.

Alternate Solution:
Assign a different class to the child table like <table class="childtable"> and then define CSS for the nested elements as follows -

.childtable tbody, .childtable tr, .childtable td, .childtable th
etc.

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