46 lines
1.4 KiB
Markdown
46 lines
1.4 KiB
Markdown
---
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title: Hover underline animation
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tags: animation,advanced
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firstSeen: 2018-02-28T13:19:22+02:00
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lastUpdated: 2020-12-30T15:37:37+02:00
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---
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Creates an animated underline effect when the text is hovered over.
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- Use `display: inline-block` to prevent the underline from spanning the entire parent width rather than just the text content.
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- Use the `:after` pseudo-element with a `width` of `100%` and `position: absolute`, placing it below the content.
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- Use `transform: scaleX(0)` to initially hide the pseudo-element.
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- Use the `:hover` pseudo-class selector to apply `transform: scaleX(1)` and display the pseudo-element on hover.
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- Animate `transform` using `transform-origin: left` and an appropriate `transition`.
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- You can remove the `transform-origin` property to make the transform originate from the center of the element.
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```html
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<p class="hover-underline-animation">Hover this text to see the effect!</p>
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```
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```css
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.hover-underline-animation {
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display: inline-block;
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position: relative;
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color: #0087ca;
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}
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.hover-underline-animation:after {
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content: '';
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position: absolute;
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width: 100%;
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transform: scaleX(0);
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height: 2px;
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bottom: 0;
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left: 0;
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background-color: #0087ca;
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transform-origin: bottom right;
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transition: transform 0.25s ease-out;
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}
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.hover-underline-animation:hover:after {
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transform: scaleX(1);
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transform-origin: bottom left;
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}
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```
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