101 lines
2.1 KiB
Markdown
101 lines
2.1 KiB
Markdown
---
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title: Image overlay on hover
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tags: visual,animation,advanced
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firstSeen: 2020-04-20T14:12:33+03:00
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lastUpdated: 2021-10-11T18:44:51+03:00
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---
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Displays an image overlay effect on hover.
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- Use the `:before` and `:after` pseudo-elements for the top and bottom bars of the overlay respectively. Set their `opacity`, `transform` and `transition` to produce the desired effect.
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- Use the `<figcaption>` for the text of the overlay. Set `display: flex`, `flex-direction: column` and `justify-content: center` to center the text into the image.
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- Use the `:hover` pseudo-selector to update the `opacity` and `transform` of all the elements and display the overlay.
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```html
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<figure class="hover-img">
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<img src="https://picsum.photos/id/200/440/320.jpg"/>
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<figcaption>
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<h3>Lorem <br/>Ipsum</h3>
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</figcaption>
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</figure>
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```
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```css
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.hover-img {
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background-color: #000;
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color: #fff;
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display: inline-block;
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margin: 8px;
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max-width: 320px;
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min-width: 240px;
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overflow: hidden;
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position: relative;
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text-align: center;
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width: 100%;
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}
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.hover-img * {
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box-sizing: border-box;
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transition: all 0.45s ease;
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}
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.hover-img:before,
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.hover-img:after {
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background-color: rgba(0, 0, 0, 0.5);
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border-top: 32px solid rgba(0, 0, 0, 0.5);
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border-bottom: 32px solid rgba(0, 0, 0, 0.5);
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position: absolute;
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top: 0;
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bottom: 0;
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left: 0;
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right: 0;
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content: '';
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transition: all 0.3s ease;
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z-index: 1;
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opacity: 0;
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transform: scaleY(2);
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}
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.hover-img img {
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vertical-align: top;
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max-width: 100%;
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backface-visibility: hidden;
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}
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.hover-img figcaption {
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position: absolute;
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top: 0;
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bottom: 0;
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left: 0;
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right: 0;
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align-items: center;
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z-index: 1;
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display: flex;
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flex-direction: column;
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justify-content: center;
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line-height: 1.1em;
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opacity: 0;
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z-index: 2;
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transition-delay: 0.1s;
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font-size: 24px;
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font-family: sans-serif;
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font-weight: 400;
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letter-spacing: 1px;
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text-transform: uppercase;
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}
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.hover-img:hover:before,
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.hover-img:hover:after {
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transform: scale(1);
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opacity: 1;
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}
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.hover-img:hover > img {
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opacity: 0.7;
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}
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.hover-img:hover figcaption {
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opacity: 1;
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}
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```
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