What is the best way to incorporate a background image in a Bootstrap tooltip?

I'm having trouble displaying an element with a background-image property within a Bootstrap tooltip. The image is not showing up as expected.

<div class="big-panel">
    <a href="#" data-bs-toggle="tooltip" data-bs-html="true" data-bs-title="Background image: <span style='display: block; background-size: cover;width: 32px; height: 32px; background-image: url(test/image.png)'></span> <br>Regular image: <img src='test/image.png'>">Hover me for testing</a>
</div>

In the same tooltip, I included a regular <img> tag which displays correctly. However, the background-image does not seem to be working. Is there a way to make this work?

javascripthtmlcsstooltipbackground-image

Answer №1

The Bootstrap tooltip component allows for HTML content with inline CSS styles, but does not natively support background images using the background-image property within the tooltip's HTML.

To work around this limitation and add a background image to your tooltip, you can create a custom CSS class and define the background image in your stylesheet.

Start by assigning a custom class, such as custom-tooltip, to the tooltip element:

<div class="big-panel">
    <a href="#" data-bs-toggle="tooltip" data-bs-html="true" data-bs-title="Background image: <span class='custom-tooltip-background'></span> <br>Regular image: <img src='test/image.png'>">Hover me for testing</a>
</div>

Then, in your CSS file, define the custom-tooltip-background class and specify the background image:

.custom-tooltip-background {
    display: block;
    background-size: cover;
    width: 32px;
    height: 32px;
    background-image: url(test/image.png);
}

Ensure the path to your image (test/image.png) is accurate relative to your CSS file location.

By following this method, the background image will be displayed within the tooltip content associated with the custom-tooltip-background class.

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