11eff23e47
* Add autoscoping with generated demo * Remove manual demo from all snippets * Add JavaScript inside IIFE * Align mouse-cursor-gradient-tracking.md to demo code * Match snippets to demo * Update CONTRIBUTING.md * Create reusable function for code extraction
55 lines
1.3 KiB
Markdown
55 lines
1.3 KiB
Markdown
### Popout menu
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Reveals an interactive popout menu on hover and focus.
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#### HTML
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```html
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<div class="reference" tabindex="0">
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<div class="popout-menu">
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Popout menu
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</div>
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</div>
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```
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#### CSS
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```css
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.reference {
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position: relative;
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background: tomato;
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width: 100px;
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height: 100px;
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}
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.popout-menu {
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position: absolute;
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visibility: hidden;
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left: 100%;
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background: #333;
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color: white;
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padding: 15px;
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}
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.reference:hover > .popout-menu,
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.reference:focus > .popout-menu {
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visibility: visible;
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}
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```
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#### Demo
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#### Explanation
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1. `position: relative` on the reference parent establishes a Cartesian positioning context for its child.
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2. `position: absolute` takes the popout menu out of the flow of the document and positions it
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in relation to the parent.
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3. `left: 100%` moves the the popout menu 100% of its parent's width from the left.
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4. `visibility: hidden` hides the popout menu initially and allows for transitions (unlike `display: none`).
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5. `.reference:hover > .popout-menu` means that when `.reference` is hovered over, select immediate
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children with a class of `.popout-menu` and change their `visibility` to `visible`, which shows the popout.
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#### Browser support
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<span class="snippet__support-note">✅ No caveats.</span>
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<!-- tags: interactivity -->
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