Customizing Bootstrap tooltip appearances with CSS

After successfully setting up Bootstrap 4.5.0, I decided to experiment with customizing the styles of tooltips. The code snippet below shows how I attempted this.

Initially, I included the necessary stylesheets at the top of the page:

    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css" integrity="sha384-9aIt2nRpC12Uk9gS9baDl411NQApFmC26EwAOH8WgZl5MYYxFfc+NcPb1dKGj7Sk" crossorigin="anonymous">
    <link rel="stylesheet" href="https://getbootstrap.com/docs/4.5/assets/css/docs.min.css">

    <link href="mystylesheet.css" rel="stylesheet">

Next, I inserted the tooltip markup within the page:

<span id="custom-tooltip" data-toggle="tooltip" data-placement="top" data-html="true" title="TTooltip tests">
    <svg ...></svg>
</span>

To ensure proper functionality, all corresponding JavaScript was placed at the bottom:

    <!-- jQuery first, then Popper.js, followed by Bootstrap JS --><
    <script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
    <script src="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="fe8e918e8e9b8cd0948dbecfd0cfc8d0cf">[email protected]</a>/dist/umd/popper.min.js" integrity="sha384-9/reFTGAW83EW2RDu2S0VKaIzap3H66lZH81PoYlFhbGU+6BZp6G7niu735Sk7lN" crossorigin="anonymous"gt;</script>
    <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js" integrity="sha384-B4gt1jrGC7Jh4AgTPSdUtOBvfO8shuf57BaghqFfPlYxofvL8/KUEfYiJOMMV+rV" crossorigin="anonymous"></script>

    <!--Initialize tooltips using Popper.js-->
    <script type="text/javascript">
        $(function ()
        {
            $('[data-toggle="tooltip"]').tooltip()
        });
    </script>

Despite my efforts in updating mystylesheet.css with the given CSS rule, no changes were reflected:

span#custom-tooltip .tooltip
{
    background-color: green !important;
}

The alteration in background color mentioned above is merely a sample. I aim to implement various other CSS modifications beyond just colors.

htmlcsstwitter-bootstrapbootstrap-4tooltip

Answer №1

According to information provided in the documentation,

The .tooltip element appears outside the element that triggers it, as shown below:

<!-- HTML code -->
<a href="#" data-toggle="tooltip" title="Some tooltip text!">Hover over me</a>

<!-- Markup generated by the plugin -->
<div class="tooltip bs-tooltip-top" role="tooltip">
  <div class="arrow"></div>
  <div class="tooltip-inner">
    Some tooltip text!
  </div>
</div>

Therefore, styling like span#custom-tooltip .tooltip will not function as expected. Instead, use the following approach:

.tooltip
{
    background-color: green !important;
}

If you wish to apply styles only to specific tooltips, consider the following solution:

$('#example').tooltip({
    html: true,
    title: 'xyz',
    template: `
        <div class="custom-tooltip tooltip">
            <div class="tooltip-inner"></div> /* leave it blank so the title will fill in dynamically here by bootstrapjs */
        </div>
    `
});

Then, style your custom tooltip like this:

.custom-tooltip {
    /* insert your custom styles here */
}

For additional configuration options, refer to the documentation.

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