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Popover

The popover component allows content to be placed in the popup that appears after clicking on a button. Popover is build on top of the <details> HTML component.

Click for details

It can be a paragraph of text.

Or a list:

Or basically anything else you can think of.

HTML 
<details class="popover">
    <summary class="link-button">Click for details</summary>
    <div class="popover-content">
        <p class="margin-bottom-xs">It can be a paragraph of text.</p>
        <p class="margin-bottom-xxs">Or a list:</p>
        <ul>
            <li>
                <a href="#">List item</a>
            </li>
            <li>
                <a href="#">List item</a>
            </li>
            <li>
                <a href="#">List item</a>
            </li>
        </ul>
        <p class="margin-top-xs">Or basically anything else you can think of.</p>
    </div>
</details>

Styling the trigger

You can apply almost any classes on the summary element to achieve the look you need. The following example applies .button.

Popover content.

HTML 
<details class="popover">
    <summary class="button border">
        <span class="icon color-primary">
            <svg class="fill-current-color" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 2048 2048">
                <path
                    d="M256 896q27 0 50 10t40 27 28 41 10 50q0 27-10 50t-27 40-41 28-50 10q-27 0-50-10t-40-27-28-41-10-50q0-27 10-50t27-40 41-28 50-10zm768 0q27 0 50 10t40 27 28 41 10 50q0 27-10 50t-27 40-41 28-50 10q-27 0-50-10t-40-27-28-41-10-50q0-27 10-50t27-40 41-28 50-10zm768 0q27 0 50 10t40 27 28 41 10 50q0 27-10 50t-27 40-41 28-50 10q-27 0-50-10t-40-27-28-41-10-50q0-27 10-50t27-40 41-28 50-10z"
                />
            </svg>
        </span>
    </summary>
    <div class="popover-content">
        <p>Popover content.</p>
    </div>
</details>

Alignments

Popover is left aligned by default, but also can be centered or right aligned relatively to the summary's width. Apply any of the corresponding classes to the popover element: popover-right, popover-center.

Popover aligned to the left
Popover content.
Popover centered
Popover content.
Popover aligned to the right
Popover content.
HTML 
<details class="popover margin-xxs">
    <summary class="button">Popover aligned to the left</summary>
    <div class="popover-content">Popover content.</div>
</details>

<details class="popover popover-center margin-xxs">
    <summary id="test-popover-summary" class="button">Popover centered</summary>
    <div id="test-popover-content" class="popover-content">Popover content.</div>
</details>

<details class="popover popover-right margin-xxs">
    <summary class="button">Popover aligned to the right</summary>
    <div class="popover-content">Popover content.</div>
</details>

Figma