152 lines
3.1 KiB
Markdown
152 lines
3.1 KiB
Markdown
---
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title: Custom checkbox
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type: snippet
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tags: [visual,animation]
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author: chalarangelo
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cover: interior-8
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dateModified: 2021-10-11T18:44:51+03:00
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---
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Creates a styled checkbox with animation on state change.
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- Use an `<svg>` element to create the check `<symbol>` and insert it via the `<use>` element to create a reusable SVG icon.
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- Create a `.checkbox-container` and use flexbox to create the appropriate layout for the checkboxes.
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- Hide the `<input>` element and use the `label` associated with it to display a checkbox and the provided text.
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- Use `stroke-dashoffset` to animate the check symbol on state change.
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- Use `transform: scale(0.9)` via a CSS animation to create a zoom animation effect.
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```html
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<svg class="checkbox-symbol">
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<symbol id="check" viewbox="0 0 12 10">
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<polyline
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points="1.5 6 4.5 9 10.5 1"
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stroke-linecap="round"
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stroke-linejoin="round"
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stroke-width="2"
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></polyline>
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</symbol>
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</svg>
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<div class="checkbox-container">
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<input class="checkbox-input" id="apples" type="checkbox" />
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<label class="checkbox" for="apples">
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<span>
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<svg width="12px" height="10px">
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<use xlink:href="#check"></use>
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</svg>
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</span>
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<span>Apples</span>
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</label>
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<input class="checkbox-input" id="oranges" type="checkbox" />
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<label class="checkbox" for="oranges">
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<span>
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<svg width="12px" height="10px">
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<use xlink:href="#check"></use>
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</svg>
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</span>
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<span>Oranges</span>
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</label>
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</div>
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```
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```css
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.checkbox-symbol {
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position: absolute;
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width: 0;
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height: 0;
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pointer-events: none;
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user-select: none;
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}
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.checkbox-container {
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box-sizing: border-box;
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background: #ffffff;
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color: #222;
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height: 64px;
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display: flex;
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justify-content: center;
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align-items: center;
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flex-flow: row wrap;
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}
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.checkbox-container * {
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box-sizing: border-box;
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}
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.checkbox-input {
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position: absolute;
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visibility: hidden;
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}
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.checkbox {
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user-select: none;
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cursor: pointer;
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padding: 6px 8px;
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border-radius: 6px;
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overflow: hidden;
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transition: all 0.3s ease;
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display: flex;
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}
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.checkbox:not(:last-child) {
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margin-right: 6px;
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}
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.checkbox:hover {
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background: rgba(0, 119, 255, 0.06);
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}
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.checkbox span {
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vertical-align: middle;
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transform: translate3d(0, 0, 0);
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}
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.checkbox span:first-child {
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position: relative;
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flex: 0 0 18px;
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width: 18px;
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height: 18px;
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border-radius: 4px;
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transform: scale(1);
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border: 1px solid #cccfdb;
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transition: all 0.3s ease;
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}
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.checkbox span:first-child svg {
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position: absolute;
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top: 3px;
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left: 2px;
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fill: none;
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stroke: #fff;
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stroke-dasharray: 16px;
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stroke-dashoffset: 16px;
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transition: all 0.3s ease;
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transform: translate3d(0, 0, 0);
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}
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.checkbox span:last-child {
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padding-left: 8px;
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line-height: 18px;
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}
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.checkbox:hover span:first-child {
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border-color: #0077ff;
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}
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.checkbox-input:checked + .checkbox span:first-child {
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background: #0077ff;
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border-color: #0077ff;
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animation: zoom-in-out 0.3s ease;
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}
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.checkbox-input:checked + .checkbox span:first-child svg {
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stroke-dashoffset: 0;
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}
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@keyframes zoom-in-out {
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50% {
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transform: scale(0.9);
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}
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}
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```
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