Highlight columns and rows when hovered over in a striped table using CSS styling

I have successfully implemented a CSS-only method for highlighting table columns on hover from a tutorial I found at https://css-tricks.com/simple-css-row-column-highlighting/

However, I am encountering an issue with applying the highlight to striped tables using:

tr:nth-of-type(odd) {
    background-color: #f0f0f0;
}

The highlighting does not work on the top and bottom cells within rows that already have a background color.

You can view an example of the problem here: http://jsfiddle.net/615avo4v/

If anyone knows how to resolve this without using JavaScript, please share your solution. Thank you!

htmlcss

Answer №1

Revamp your approach to creating a stripped background.

Introduce a new pseudo element on the first td of even rows, horizontally aligned with a lower z-index.

* {
    margin: 0;
    padding: 0;
}

table {
    width: 100%;
    border-spacing: 0;
    color: #212121;
    text-align: left;
    overflow: hidden;
}

table>tbody>tr>td {
    padding: 10px;
    font-size: 14px;
    position: relative;
}


table>tbody>tr:hover {
    padding: 20px;
    background-color: #ffa !important;
}

tr:nth-child(even) td:first-child::before {
    content: "";
    position: absolute;
    background-color: lightgreen;
    top: 0;
    left: -5000px;
    width: 10000px;
    height: 100%;
    z-index: -10;
}
td:hover::after {
    content: "";
    position: absolute;
    background-color: #ffa;
    left: 0;
    top: -5000px;
    height: 10000px;
    width: 100%;
    z-index: -1;
}
 <table>
        <tr>
            <td>col1</td>
            <td>col2</td>
            <td>col3</td>
            <td>col4</td>
            <td>col5</td>
            <td>col6</td>
            <td>col7</td>
            <td>col8</td>
        </tr>
        <tr>
            <td>col1</td>
            <td>col2</td>
            <td>col3</td>
            <td>col4</td>
            <td>col5</td>
            <td>col6</td>
            <td>col7</td>
            <td>col8</td>
        </tr>
        <tr>
            <td>col1</td>
            <td>col2</td>
            <td>col3</td>
            <td>col4</td>
            <td>col5</td>
            <td>col6</td>
            <td>col7</td>
            <td>col8</td>
        </tr>
        <tr>
            <td>col1</td>
            <td>col2</td>
            <td>col3</td>
            <td>col4</td>
            <td>col5</td>
            <td>col6</td>
            <td>col7</td>
            <td>col8</td>
        </tr>
        <tr>
            <td>col1</td>
            <td>col2</td>
            <td>col3</td>
            <td>col4</td>
            <td>col5</td>
            <td>col6</td>
            <td>col7</td>
            <td>col8</td>
        </tr>
        <tr>
            <td>col1</td>
            <td>col2</td>
            <td>col3</td>
            <td>col4</td>
            <td>col5</td>
            <td>col6</td>
            <td>col7</td>
            <td>col8</td>
        </tr>
    </table>

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