68 lines
1.3 KiB
Markdown
68 lines
1.3 KiB
Markdown
---
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title: Navigation list item hover and focus effect
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tags: visual,beginner
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---
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Fancy hover and focus effect at navigation items using transform CSS property.
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```html
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<nav>
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<ul>
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<li><a href="#/">Home</a></li>
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<li><a href="#/">About</a></li>
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<li><a href="#/">Contact</a></li>
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</ul>
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</nav>
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```
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```css
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nav ul {
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list-style: none;
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margin: 0;
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padding: 0;
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overflow: hidden;
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}
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nav li {
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float: left;
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}
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nav li a {
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position: relative;
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display: block;
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color: #222;
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text-align: center;
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padding: 8px 12px;
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text-decoration: none;
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}
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li a::before {
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position: absolute;
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content: "";
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width: 100%;
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height: 100%;
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bottom: 0;
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left: 0;
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background-color: #f6c126;
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z-index: -1;
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transform: scale(0);
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transition: transform 0.5s ease-in-out;
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}
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li a:hover::before, li a:focus::before {
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transform: scale(1);
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}
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```
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#### Explanation
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- Use the `::before` pseudo-element at the list item anchor to create a hover effect, hide it using `transform: scale(0)`.
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- Use the `:hover` and `:focus` pseudo-selectors to transition to `transform: scale(1)` and show the pseudo-element with its colored background.
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- Prevent the pseudo-element from covering the anchor element by using `z-index: -1`.
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#### Browser support
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- https://caniuse.com/#feat=transforms2d
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- https://caniuse.com/#feat=css-transitions
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